I like that Customer.io is transparent about user segments and profile attributes. Every attribute, filter rule, and segment membership is explicitly clear instead of hidden in a black box. Review collected by and hosted on G2.com.

I found that Customer.io has a genuine learning curve. I had to spend time understanding event structures, attribute schemas, and workflow logic because not everything can be configured with simple natural language prompts. Review collected by and hosted on G2.com.

Agent future is amazing, and the ability to separate my different apps in workspaces Review collected by and hosted on G2.com.

I'm not happy with the push notification scheme. I've been having trouble with the reading of the results. Review collected by and hosted on G2.com.

Control over custom segmentation of users and the refresh frequency such as identifying the right audience, triggering a journey, sending the message and measuring campaign response Review collected by and hosted on G2.com.

It can become complicated at scale. Once you have dozens/hundreds of journeys, segments, triggers and exceptions, governance becomes important. You can end up with a lot of business logic living inside Customer.io rather than in your core data/product systems that has to be maintained. Review collected by and hosted on G2.com.

What I like best about Customer.io is how flexible and user-friendly it is for creating personalized customer journeys. It makes it easy to automate communication across different channels while still keeping the experience feel human and tailored to each user. Review collected by and hosted on G2.com.

One thing I dislike about Customer.io is that some advanced features and workflows can feel a bit complex at first, especially for new users. It can take time to fully understand the setup and navigation when building more detailed automations. Review collected by and hosted on G2.com.

I like Customer.io’s native AI integration. I can use AI to visualize, structure, and analyze complex customer journey flows, which makes campaign planning much simpler. Review collected by and hosted on G2.com.

My main complaint is the transition from simpler tools like Mailchimp. Customer.io’s layout isn’t as immediately straightforward or simplified as Mailchimp’s static list setup, and the initial setup required a bit of adjustment while I got familiar with the platform’s layout. Review collected by and hosted on G2.com.

Fast paced updates and consistent advancements. New dashboards are also looking good. Different workspaces and communication channels are easy to implement. Also, all the system is working properly most of the time Review collected by and hosted on G2.com.

Sometimes we stay a little far from global updates. We use mostly for transactional actions. We should try to increase campaigns that create value Review collected by and hosted on G2.com.

I like Customer.io’s Model Context Protocol (MCP) server integration. It lets me build, manage, and report on automated workflows in an agentic workspace. I can query audience data, inspect campaign performance, and generate automation structures using natural language prompts. Review collected by and hosted on G2.com.

I needed about 2 to 3 weeks for the initial technical setup, including the in-app messaging SDKs, domain authentication, and user identity schemes. Review collected by and hosted on G2.com.

I love working with the Customer.io team because they're responsive to feedback, knowledgeable, and work quickly. I find the automations and workflows can be configured in a wide variety of ways, making them easy for us to use. Plus, they consistently add new functionality through new releases, which is really helpful. I also really appreciate the core automations, broadcast functionality, and in-app notifications. The initial setup was very easy to get up and running. Review collected by and hosted on G2.com.

Setting up automations can be complex, and it's not always clear what the behavior will be. We've run into issues where we send to the wrong population because of a misconfiguration, but it feels like Customer.io makes it too easy to make mistakes sometimes. Review collected by and hosted on G2.com.

I appreciate the ease of use and clarity of the tool: everything is simple to understand. The AI agent is also a real plus, as it helps us daily. Review collected by and hosted on G2.com.

The length of automations makes things unnecessarily complicated, even for adding a simple 'If' node. I also regret the inability to create test samples from already received data. Finally, some integrations are still missing (Stripe, WhatsApp...). Review collected by and hosted on G2.com.

I've been absolutely blown away by the capabilities of Customer.io - the way that it integrates with our other systems, the range of communication methods and the degree to which they can be tweaked, customised and optimised is incredible. Performance has been great - I've encountered literally 0 bugs or unexpected behaviours so far.

The truly impressive part to the whole thing is how user friendly the system is - managing complex workflows is a breeze, even for the less technical amongst our team.

The platform's pricing structure is fair and justified given how powerful it is and how enormous the potential to generate ROI from it is.

I dealt with their customer service team during our onboarding process and they handled my enquiries promptly and effectively. Review collected by and hosted on G2.com.

I haven't really encountered anything I would say that I really "dislike" about Customer.io - of course there are challenges around understanding its range of capabilities, navigating the set up and running of campaigns etc, but that's quite understandable.

I will never go back to traditional platforms that only broadcast to subscriber lists ever again. Review collected by and hosted on G2.com.