I am required to maximise my use of AI at work and so I do. It's good enough at simple, common stuff. Throw up a web page, write some python, munge some data in C++, all great as long as the scale is small. If I'm working on anything cutting edge or niche (which I usually am) then it makes a huge mess and wastes my time. If you have a really big code base in the ~50million loc range then it makes a huge mess.
I really liked writing code, so this is all a big negative for me. I genuinely think we have built a really bad thing, that will take away jobs that people love and leave nothing but mediocrity. This thing is going to make the human race dumber and it's going to hold us back.
I work at a company that maintains one of the largest Rails codebases in the world (their claim, but believable). My experience has been the opposite - Claude and Cursor have done a wonderful job of helping me understand the implement new features in this gigantic codebase. I actually found out through AI that while I enjoy writing code, I enjoy building great software better, the coding was just a means to the end.