It's been great. I had one experience with customer support where I felt the person wasn't going to pass on valid feedback (open rates of the first email cut by half due to < 2 hour wait with FB sync). But other interactions with support were great and I also was able to connect with their product manager who promised to look into it. I felt they're a young and flexible team. Also laser focused on email and what email marketers need.

If you want flexibility in segmenting your drips (or flows as they call it) then you need to use Klaviyo. We were using Mailchimp and kept finding areas that made it time consuming, confusing, or just not built to have a flexible drip campaign where contacts receive emails based on rules. For example you can easily create a series of emails that are only sent to contacts that meet a specific criteria and do it all within one drip through a "workflow" like drag and drop builder. You can also sync up to your facebook leads and save money on Zapier which is what you need to use if with Mailchimp.

While Zapier immediately pulls in leads from Facebook, Klaviyo only syncs every 2 hours. A lead getting a welcome email right away is SUPER important, but this means they don't hear from us for some time and it's negatively impacted our first email open rates -- almost cut it in half.

Overall I've been very happy with Klaviyo and appreciate its focus on email marketing and SMS rather than trying to be the tool for everything.

I use Klaviyo for my email newsletter. It's been a smooth process overall. I've had no issues importing and managing lists and contacts and have been happy with its design capabilities, deliverability, and analytics.

As my list grows, I'm a little weary of the pricing for larger audiences, but that is only an issue I see down the line.

We use Klaviyo regularly and it's great for email automations and campaign sends. Email marketing is a must for any eCom business and Klaviyo does it well. The only downside is the cost. It's starting to get super expensive as our list grows.

I like the automations, triggers, and data. Love that it integrates with shopify.

The cost is starting to get out of control. Getting really expensive.

Poor, I wouldn't recommend Klaviyo over others that I have used (Active Campaign, Omnisend, Drip).

The Klaviyo application is very powerful, no doubt.

The UI for the automation flow filters are not intuitive and not well designed. Basic requirements for flows are unnecessarily difficult to implement. When you contact Klaviyo support, staff gives information that contradicts their published documentation and often don't actually give the correct advice at all, resulting going around in circles trying to get issues resolved. Klaviyo list management is also poor, and like some other platforms (seems to be a trend), Klaviyo gears the system towards pushing you to pay for more customer profiles than you actually need and then when you try to clean or remove profiles you have to go through manual processes, whereas Klaviyo could easily provide options to automate this, or at least NOT require manual CVS export/imports. I mean really Klaviyo it's 2022 people. The Klaviyo visual builder is buggy, even in their "NEW" builder there were bugs with things as basic as applying link colour styles at a global level. Generally also poor UI for the visual builder. Overall, it's almost like the Klaviyo designers tried to make the UI as clunky as possible, probably went to the same design school as the Mailchimp designers (which is equally terrible).