--- title: "Doodle Reviews, Pros and Cons - 2026 Software Advice" description: "Reviews of Doodle. Learn how real users rate this software's ease-of-use, functionality, overall quality and customer support. Talk to our advisors to see if Doodle is a good fit for you!" source_url: "https://www.softwareadvice.com/product/99128-Doodle/reviews/" page_type: "reviews" language: "en" --- 1 million+ businesses helped. Get advice Get Free Advice [Home](https://www.softwareadvice.com/) / [Appointment Scheduling Software](https://www.softwareadvice.com/appointment-scheduling/) / [Doodle](https://www.softwareadvice.com/product/99128-Doodle/) / Doodle Reviews Software Advice offers objective insights based on verified user reviews and independent product and market research. When our advisors match you to a software provider, we may earn a referral fee. [Overview](https://www.softwareadvice.com/product/99128-Doodle/) Reviews [Alternatives](https://www.softwareadvice.com/product/99128-Doodle/alternatives/) # Doodle User Reviews ## Reviews summary - Overall rating: 4.6/5 - Total reviews: 1,838 ### Secondary ratings - Ease of use: 4.6/5 - Customer support: 4.4/5 - Value for money: 4.6/5 - Functionality: 4.4/5 ### Rating distribution - 5 stars: 1,247 reviews (68%) - 4 stars: 486 reviews (26%) - 3 stars: 85 reviews (5%) - 2 stars: 12 reviews (1%) - 1 star: 8 reviews (0%) ### Most mentioned pros - This is the most accessible, frictionless application for appointment management since it automatically syncs with the most ubiquitous calendar systems. - The software has reliable features for reminders and Meeting management. - I am able to select so many options for dates and times to ensure that everyone has something they can choose. ### Most mentioned cons - However if I make any changes to my work calendar, or some students cancel their meeting request, this does not turely synchronise with the doodle calendar. - The colour scheme used to highlight availability on the calendar needs improvement as it is difficult to see which of the days have available time slots. - The advertisement to the side of doodle poll or calendar is not very professional. ## Doodle customer reviews Showing reviews 1-25 of 1,838 (page 1). ### Doodle Is Good Scheduling System - Overall rating: 4/5 - Reviewer: Veronica C. - Verified reviewer: Yes - Industry: Education Management - Company size: 2-10 employees - Product usage: Used monthly for free trial - Reviewed: May 2026 - Review source details: This review was submitted organically. No incentive was offered #### Ratings breakdown - Ease of use: 4/5 - Value for money: 3/5 - Customer support: 4/5 - Functionality: 5/5 #### Pros I like how Doodle allows me to effortlessly schedule meetings, appointments, and other important events. #### Cons The free version is heavily ad supported and the updates fail to remove bugs in the system. There are very few free features. --- ### Doodle Review - Overall rating: 5/5 - Reviewer: Eric N. - Verified reviewer: Yes - Industry: Computer Software - Company size: 2-10 employees - Product usage: Used weekly for less than 12 months - Reviewed: November 2022 - Review source details: This review was submitted organically. No incentive was offered My experience so far has been top-notch as this has helped me stay organized and professional #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 5/5 #### Pros This is by far the best software that I have ever used, seamless, and user-friendly, and helps me organize my busy schedules, that way I don't miss any important meetings anymore. #### Cons The support team is not very supportive, it takes almost an eternity to get back to you. Even though they always try to resolve your problems. #### Reasons for choosing Doodle Because it is easy and straightforward to use --- ### Very helpful and save time. - Overall rating: 5/5 - Reviewer: May G. - Verified reviewer: Yes - Industry: Education Management - Company size: 201-500 employees - Product usage: Used monthly for free trial - Reviewed: March 2026 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. I used to schedule class events, like a movie night, a dinner event, a field trip and it was very accessible to everyone. #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 5/5 #### Pros It useful for scheduling an event when people are very busy, you can give them options like days and time . #### Cons I think everything worked really well when I scheduled a dinner for students it gave numbers of how many can attend according to a specific day. --- ### Product Review for Doodle - Overall rating: 5/5 - Reviewer: Nasdaq L. - Verified reviewer: Yes - Industry: Hospital & Health Care - Company size: 501-1000 employees - Product usage: Used weekly for less than 12 months - Reviewed: May 2025 - Review source details: This review was submitted organically. No incentive was offered Doodle is a great platform that has served me tremendously in my work as a senior director admin assistant. It's allowed me to organize my manager's schedule easily and saved me a ton of time to focus on other important tasks throughout the day. #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 5/5 #### Pros Doodle is an easy-to-use, fast and efficient software to schedule meetings. It's saved me a ton of time in my daily work and I'd highly recommend it to anyone in my field. #### Cons The colour scheme used to highlight availability on the calendar needs improvement as it is difficult to see which of the days have available time slots. --- ### Excellent free tier to get started, brilliant for group polls - Overall rating: 5/5 - Reviewer: Michael A. - Verified reviewer: Yes - Industry: Marketing and Advertising - Company size: 2-10 employees - Product usage: Used monthly for free trial - Reviewed: November 2025 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. While we didn't use it for professional / client-facing work, it was brilliant for helping us get organised when organising casual social events. #### Ratings breakdown - Ease of use: 5/5 - Functionality: 5/5 #### Pros When we used Doodle in corporate environments, we found it so easy to use for group polls and eliminated a lot of to-and-froing. It was free for this very useful feature. #### Cons None. We didn't make use of Doodle as a calendaring or 1:1 appointment booking tool, but to help us organise casual / social events with minimal fuss. --- ### Doodle has simplified my life! - Overall rating: 5/5 - Reviewer: Ivory M. - Verified reviewer: Yes - Industry: Non-Profit Organization Management - Company size: 11-50 employees - Product usage: Used monthly for less than 2 years - Reviewed: March 2025 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. I have used Doodle to coordinate family events, parent meetings, and any situation requiring multiple people to collaborate to find a shared date and time. #### Ratings breakdown - Ease of use: 5/5 - Functionality: 5/5 #### Pros It has immensely reduced the time I used to spend scheduling meetings. #### Cons I don't have any complaints. It has satisfied all of y needs thus far. --- ### Doodle Scheduling Benefits - Overall rating: 5/5 - Reviewer: Claire S. - Verified reviewer: Yes - Industry: Primary/ Secondary Education - Company size: 51-200 employees - Product usage: Used monthly for less than 2 years - Reviewed: May 2025 - Review source details: This review was submitted organically. No incentive was offered I have used Doodle when scheduling meetings with both teachers and students. The users always seem to understand how it works and it helps to find convenient times to meet when everyone is available. #### Ratings breakdown - Ease of use: 5/5 - Value for money: 4/5 - Customer support: 3/5 - Functionality: 5/5 #### Pros I like the quick set up and convenient options that Doodle offers. I also like that users do not have to sign into vote. #### Cons Doodle is no frills, so there is not much to customize. Perhaps they could add themes or other choices to add to the polls. --- ### Try it out! - Overall rating: 5/5 - Reviewer: Jalaycia L. - Verified reviewer: Yes - Industry: Program Development - Company size: Self-Employed - Product usage: Used monthly for less than 2 years - Reviewed: April 2025 - Review source details: This review was submitted organically. No incentive was offered I love scheduling meetings with multiple stakeholders through Doodle. It is quite accessible; however, I believe that it can function more effectively for users. #### Ratings breakdown - Ease of use: 5/5 - Functionality: 3/5 #### Pros I love the ease of scheduling large meetings with multiple stakeholders. #### Cons I wish that Doodle was more aesthetically pleasing; it can be confusing to understand how to utilize it at first. --- ### Doodle makes Scheduling meetings easy - Overall rating: 5/5 - Reviewer: David B. - Verified reviewer: Yes - Industry: Religious Institutions - Company size: 2-10 employees - Product usage: Used monthly for more than 2 years - Reviewed: March 2025 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Doodle offers a great solution to the challenge of going back and forth with a bunch of dates and working within people's schedules. #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 5/5 #### Pros Easy to coordinate schedules and pick a time that works for everyone. #### Cons A little clunky at first when trying to set up poll dates and check in, but not too hard to catch on. --- ### Very Efficient and Helpful Tool - Overall rating: 5/5 - Reviewer: Rachael N. - Verified reviewer: Yes - Industry: Education Management - Company size: 501-1000 employees - Product usage: Used monthly for less than 12 months - Reviewed: March 2025 - Review source details: This review was submitted organically. No incentive was offered I loved it! I am very grateful something like this was created and will definitely use it again. #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 5/5 #### Pros I have never used something like Doodle before. It was extremely helpful for finding a date/time that works for everyone in a group. It was much more efficient than sending multiple emails or texts back and forth. It saved a lot of time and I am very thankful for it. #### Cons I can't think of anything huge -- just that maybe it could be more clear when there is a second page of times that are available. Or it would be nice if you could add comments. --- ### Great platform - Overall rating: 5/5 - Reviewer: Sylla N. - Verified reviewer: Yes - Industry: Fine Art - Company size: 2-10 employees - Product usage: Used daily for less than 6 months - Reviewed: January 2025 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. #### Ratings breakdown - Ease of use: 5/5 - Functionality: 5/5 #### Pros Pros would be poll-based scheduling, alerts/notifications in the paid version, and calendar integration. I appreciate the time zone management and poll deadline features as well. #### Cons There is no in-app video conference option, the free version is somewhat limited, and it needs an internet connection. --- ### Free, easy tool - Overall rating: 4/5 - Reviewer: Irina D. - Verified reviewer: Yes - Industry: Information Technology and Services - Company size: 2-10 employees - Product usage: Used monthly for more than 2 years - Reviewed: January 2025 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. #### Ratings breakdown - Ease of use: 4/5 - Functionality: 4/5 #### Pros Free, simple tool for communicating availability across groups #### Cons Its hard to navigate many dates at once, e.g. a few months --- ### Doodle is Convenient - Overall rating: 4/5 - Reviewer: Anvita S. - Verified reviewer: Yes - Industry: Education Management - Company size: Self-Employed - Product usage: Used other for more than 2 years - Reviewed: September 2019 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Overall my experience with Doodle has been positive, fast, and convenient. I was a part of many organizations that used Doodle in the past and we were able to quickly find dates that worked best for big groups of people in order to meet. I really liked that once more people started answering, others were more inclined to find their best fit within the dates people were already choosing. As an organizer of events and meetings as well, this is a big plus that made me like Doodle a lot because it helps steer people to consolidate their answers with others rather than pick one that no one else has picked and already makes people "work together" in a way. #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 4/5 #### Pros What I like most about Doodle is that it is a quick and convenient way to take polls for a group of people, for example to pick a date that works best for everyone or to figure out when or what works for the most people. I like that I am emailed the link directly to the poll from the creator, and I can simply click on it, see the question, and submit my answer. I also like that I can see the answers everyone else has submitted, so that way, if for example it is in regards to the best time for a meeting, I can try to pick what is best between what others have already chosen so that way the options don't spread out too much. This keeps keeping dates or taking polls in order to figure out what is best for everyone simple because seeing what others have already chosen makes me more inclined to pick something they already in order to make a decision faster. Other polling services often times do not show what others have chosen until after I submit my answer, so all of our choices can be spread out and that makes narrowing down options harder. That is why I like Doodle. #### Cons Honestly what I like least about Doodle is the name of the software... I don't feel professional using a software called "Doodle" and I can't imagine telling my employees or anyone in a workplace that I am sending out a "Doodle" for them to please respond to. I would rather just say I am sending out a poll than use the actual name. It might be a silly thing to like least about it, but it does not feel professional and a word people may not take seriously. I also do not like the layout of the Doodle once I open the page, but again that is a personal preference, because it was plain white and the entire format of the poll was spread out across the entire page and looked messy. I suppose users on not answering the question(s) for that long most of the time so it's not really a huge issue. --- ### Doodle review - Overall rating: 4/5 - Reviewer: Verified Reviewer - Verified reviewer: Yes - Industry: Philanthropy - Company size: 11-50 employees - Product usage: Used weekly for less than 12 months - Reviewed: June 2023 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Great experience, a life jack for identifying an appropriate available meeting time in any team setting or circumstance. #### Ratings breakdown - Ease of use: 4/5 - Value for money: 5/5 - Customer support: 3/5 - Functionality: 4/5 #### Pros I love how easy is to set availabilities and also understand other members’ declared availability. #### Cons I don’t like how when changes need to be made, it is a complex process to get everyone from the team to go back into the software and adapt. --- ### Doodle Review - Overall rating: 5/5 - Reviewer: Miranda T. - Verified reviewer: Yes - Industry: Computer Software - Company size: Self-Employed - Product usage: Used daily for less than 12 months - Reviewed: July 2021 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Very easy to use, excellent software, makes scheduling a breeze, and helps tremendously with keeping track of important meetings and events. Doodle is the best! #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 5/5 #### Pros Doodle is an incredible software. It is simple to set up, always runs smooth and efficient, makes scheduling much more simpler, saves me time, and is extremely convenient. It also prevents double booking, and it really helps me with keeping track of everything. I would highly recommended this software to everyone. #### Cons There’s nothing that I didn’t like about Doodle. I believe that it helps a lot of people, and I haven’t had any issues with this software. --- ### I use Doodle for meetings - Overall rating: 5/5 - Reviewer: Thomas C. - Verified reviewer: Yes - Industry: Plastics - Company size: 10000+ employees - Product usage: Used daily for less than 2 years - Reviewed: October 2024 - Review source details: This review was submitted organically. No incentive was offered It made personal conversations much easier for me through video calls that are fast and without having to travel to places #### Ratings breakdown - Ease of use: 5/5 - Value for money: 4/5 - Customer support: 4/5 - Functionality: 5/5 #### Pros I use it to organize meetings with clients or coworkers. I can schedule them in advance to have an organized agenda and when the day comes, Doodle notifies me with notifications which meetings are for that day and the time of each one. I have found it to be a useful tool in which I can trust my entire meeting agenda without forgetting any and have a good conversation without interruptions #### Cons I use the basic tools and they have always worked correctly for me without any failures or system crashes --- ### Best Time Management Tool - Overall rating: 5/5 - Reviewer: Verified Reviewer - Verified reviewer: Yes - Industry: Banking - Company size: 201-500 employees - Product usage: Used daily for less than 2 years - Reviewed: January 2023 - Review source details: This review was submitted organically. No incentive was offered Appointments management is one of the problems that Doodle solved for me #### Ratings breakdown - Ease of use: 4/5 - Value for money: 4/5 - Customer support: 4/5 - Functionality: 5/5 #### Pros This software is very important to manage my daily job and organize my tasks including appointments with clients. #### Cons I hope the developer takes care of mobile access needs to be easier. --- ### Scheduling meetings has never been easier! - Overall rating: 5/5 - Reviewer: Angelica O. - Verified reviewer: Yes - Industry: Computer Networking - Company size: 10000+ employees - Product usage: Used weekly for more than 2 years - Reviewed: December 2022 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Great. I much prefer it to many other organization software that have very limited features #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 4/5 - Functionality: 4/5 #### Pros I love this software. It has made my life easier in scheduling appointments, group and work meetings, but also in managing my personal commitments! I appreciate so much the possibility of synchronizing all appointments from phone to computer and I love the interface that shows the week with each appointment colored differently.For me, the function of editing and sharing calendars with work colleagues is fundamental, who can insert notes or automatically move meetings when they need to. THE Furthermore, the program automatically rearranges the schedules when there are two overlapping appointments after a shift! #### Cons I would like to have the function to "hide" personal appointments, because at the moment it is possible to schedule work and personal appointments separately on the calendar. You know Instead, it would be nice to have all the appointments on a single calendar and decide which to make shareable and visible to other work colleagues and which to remain hidden and private --- ### Great Software for Managing Team Projects and Meetings - Overall rating: 5/5 - Reviewer: Vincent E. - Verified reviewer: Yes - Industry: Mental Health Care - Company size: 11-50 employees - Product usage: Used weekly for more than 2 years - Reviewed: March 2024 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. I have always had a great experience with Doodle due to its ease of use and ease of deployment. #### Ratings breakdown - Ease of use: 5/5 - Value for money: 5/5 - Customer support: 5/5 - Functionality: 5/5 #### Pros I have used Doodle for nearly ten (10) years, both in my current role and as part of a my role in government administration. I have always loved how easy it is to implement Doodle into any team project and to use it for scheduling meetings and appointments. #### Cons I have a difficult time finding anything that I don't like about this software. It has continued to evolve to meet my needs from being an employee of another agency to running my own practice with clients. --- ### A great event-planner device - Overall rating: 5/5 - Reviewer: Yavuz Selim E. - Verified reviewer: Yes - Industry: Consumer Goods - Company size: 10000+ employees - Product usage: Used daily for less than 2 years - Reviewed: September 2023 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. As I said it is much more easy to use Doodle than having an Excel sheet and try to match everybody's available time slot. The userface is simple which makes it easy to get used to. #### Ratings breakdown - Ease of use: 4/5 - Value for money: 4/5 - Customer support: 4/5 - Functionality: 5/5 #### Pros It is a great tool to arrange appointments and gatherings, see who can come and when is the most useful time for such kind of events. #### Cons Since our team uses it very frequent I decided to upload a profile picture and had some problems about it. --- ### Excellent and easy to use - Overall rating: 5/5 - Reviewer: Rich K. - Verified reviewer: Yes - Industry: E-Learning - Company size: 51-200 employees - Product usage: Used monthly for more than 2 years - Reviewed: September 2021 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Fantastic. Everyone hates meetings, and as a manager, arranging them is a pain. Doodle takes the pain out of that process. Now if it could only take the pain out of the meetings themselves! #### Ratings breakdown - Ease of use: 5/5 - Functionality: 5/5 #### Pros I’ve used many scheduling products and Doodle is by far the best and simplest to use. It’s interface is pleasing and intuitive, and the instructions for using are so simple even a technophobe like me can master it. I wouldn’t use another product for arranging netting times and making sure my faculty have reminders for what meetings are upcoming. The enhancements over the years have only improved its functionality and ease of use. #### Cons I can think of nothing I would improve. I keep coming back to Doodle when other similar products are suggested. I’ve found them all to be inferior to Doddle. --- ### Scheduling Made Easier! - Overall rating: 5/5 - Reviewer: Verified Reviewer - Verified reviewer: Yes - Industry: Civic & Social Organization - Company size: 11-50 employees - Product usage: Used monthly for more than 2 years - Reviewed: October 2018 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Doodle is one of those companies whose product has become a commonly used noun or verb (Google, Tupperware, Saran Wrap, etc.), because it's just that useful! Any attempt to schedule a group meeting or event always wraps up quickly with a plan that "We'll just send out a Doodle!" #### Ratings breakdown - Ease of use: 4/5 - Value for money: 5/5 - Functionality: 4/5 #### Pros Doodle is FANTASTIC for group scheduling. I have used the free version extensively for groups of various sizes and scheduling options of various numbers, and it beats any other form of group scheduling that I've tried (although I haven't used any other scheduling softwares, only emails/texts/unfortunately lengthy conversations). When creating a Doodle, there are many customizable options for date and time combinations, and it's easy to send a quick link to participants or send it directly from Doodle's site. There are options for polls to be visible to other participants or private; the visible option is great when we're trying to fill various volunteer shifts and want people to be able to see where we need the most support! When filling out a Doodle as a participant, it helps to be able to toggle back and forth between calendar and list views for schedules (although long lists still get a bit tedious to fill out if you are using a phone instead of a browser on your computer). It's also easy to go back to the link and edit your entry if your plans change. #### Cons If you have LOTS of scheduling options to consider, it can be difficult to add all of the entries when first creating the poll. There is a helpful "duplicate" option, but it doesn't work as well if you don't have the same times available each day. --- ### Easy and Organized - Overall rating: 4/5 - Reviewer: Verified Reviewer - Verified reviewer: Yes - Industry: Internet - Company size: 51-200 employees - Product usage: Used monthly for more than 2 years - Reviewed: January 2019 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. Overall it is a simple tool that serves one purpose, to make it easier for everyone involved to find a convenient date for parties, meetings, appointments, trips etc. Instead of going back and forth in an endless email thread we simply need to simply fill the time that works for best for us. It saves time, it is less hassle and improves communication. Also great to sync schedules with people you do not see very often but need to work with. #### Ratings breakdown - Ease of use: 5/5 - Functionality: 3/5 #### Pros I enjoy how easy it is to use the tool to collaborate with others in order to find their availability for example. We are a lot of young people in the company I work at and Doodle is always the first step when it comes to organizing events and out of the office parties. Considering we are all busy with friends, exams and nights out Doodle makes it super easy and fast to find out a time and day that best works for all of us. The tool is very user friends and simple, there is almost no way to get confused about what you need to do even if you are not tech savvy. #### Cons My main dislike is that there is no option to change the dates with text, it would be great if I can select if we want to vote for date or venue or activity. Also, it would be better if dates on the checklist were shown at once. Of course there is the expand button, but I think it should be expanded by default when there are lot of options to choose from. Would be nice if the calendar view is improved as well, similar UI to the monthly/weekly Google Calendar type of view would be a great improvement and will also make it easier to use, and it will make the tool look less messy and unorganized. --- ### Easy-peasy meetings - Overall rating: 4/5 - Reviewer: Simon C. - Verified reviewer: Yes - Industry: Education Management - Company size: 1001-5000 employees - Product usage: Used monthly for more than 2 years - Reviewed: July 2023 - Review source details: This review was submitted organically. No incentive was offered #### Ratings breakdown - Ease of use: 4/5 - Functionality: 3/5 #### Pros When collaborating with participants both within and outside the organizations, where you don't have access to everyone's calendars, Doodle makes it very easy to coordinate meeting times. #### Cons At least in my organization, it wasn't possible for me to integrate Doodle into my Exchange setup. That way, I still had to refer to two systems when arrainging meetings. --- ### good experience - Overall rating: 5/5 - Reviewer: Verified Reviewer - Verified reviewer: Yes - Industry: Information Technology and Services - Company size: 201-500 employees - Product usage: Used daily for free trial - Reviewed: October 2023 - Review source details: This reviewer was invited by us to submit an honest review and offered a nominal incentive as a thank you. I really use all time this app for scheudeling on my job and real life #### Ratings breakdown - Ease of use: 5/5 - Value for money: 4/5 - Customer support: 1/5 - Functionality: 3/5 #### Pros I really love this app to scheaudle with big groups of people. I really need no login scheudle to be efficent #### Cons I need more conectivity rith teams or another apps. I really need too a better scheudeling hub for more than two weeks ## More reviews [Next reviews](https://www.softwareadvice.com/product/99128-Doodle/reviews/?page=2) --- Doodle Reviews, Pros and Cons - 2026 Software Advice