I've been using graphql on the FE and BE for about 2 years now, and used REST for about 10 years before that. I really like the apollo client when using React, it's a great fit and let's me avoid the mental complexity of data stores like Redux etc.

On the BE it's not great, harder to reason about than REST and harder to manage. It's also harder to monitor than traditional REST, since REST makes use of a full range of http header codes (the graphql server we used only used http header 200 by default, we have modified this).

What I recently learned is that the apollo client has support for REST APIs, this is a path that seems interesting to me. We've also been looking at FE libraries for REST that have similar interfaces to the apollo client, if you have suggestions please let me know.