What I really like is that we use our own database as the single source of truth, and not the email platform database which is never up to date. With Customer.io we use real-time data from our own platform (B2B SaaS) which helps me as a marketer to always communicate with customer segments in the best possible way. Customer.io provide lots of options to filter based on segments and rules which comes in very handy when you want to create cool workflows. Overall, extremely happy with the platform.

Easy-to-use and intuitive email and marketing automation platform. Especially the ability to send out webhooks makes it very strong.

The initial set up requires some help from a developer but if you have that sorted out, it's really easy to use.

Extremely positive

The UI/UX is very smooth and clean, and customer service is spectacular. As someone who has used many ESPs, it's very important to me that I can work smoothly without interruptions. In my career, CIO stands alone in UI/UX among competitors. Our account representative is always available for help and consultations, and is always bringing value to our relationship.

It would be nice if there was an out-of-the-box solution for opt-in forms, but it integrates well with our third party app so this isn't a big deal. What they lack here is completely made up for in the quality of their platform and their integrations

I don’t find this product very easy to use but it’s one of the best so far I’ve used in the email automation space.

I liked that I could run my drip campaigns on this tool. The complexity of the drips could be managed.

It requires a dedicated developer which might not always be possible. There should be a few automated codes.

I've tried many marketing automation tools and this hits the spot in terms of what a tech-savvy non-developer can do. There's a fine line between an eye-candy platform that scores low on customization and a fully fledged tool that requires constant support from a developer. Customer.io walks that line gracefully, allowing me to control onboarding and loyalty processes and much more.

I like that I have yet to hit its limitations. Usually if a feature isn't readily available, the platform is open enough for me to find a workaround that gets the job done. Kudos for customer support, a real win! :)

It could use more or better filtering and search options, as the segments, campaigns and attributes can turn into chaos if multiple people use it for different purposes. The learning curve was a bit steep. Except for the quite useful knowledge base and great customer support, I would have enjoyed some video tutorials/onboarding experience.

I'm happy with the tool and feel confident sending transactional emails or marketing newsletters.

The platform has a steep learning curve, but once you get past that phase, it's truly powerful. Things that seemed impossible with other email clients are feasible with Customer.io. The drag and drop editor is also much better and runs much more smoothly than others I've used.

I'd say the biggest con is that it's a bit pricey. It can also be a bit overwhelming at first because there are so many features, but you just have to push through the learning curve.