I used it extensively to help me code my PHP for an art portfolio site. Briefly thought about using 11ty but needed to put something up quick after being laid off and I knew PHP.
For the most part it was good. It was really good at creating simple functions for me. My issue came when I asked it to build me a JS lightbox in Bootstrap. i wanted it to look a certain way so I had to edit my prompt multiple times because it would edit the code and “forget” my previous modification. Ended up using someone else’s JS code.
It was incredibly frustrating. It’s powerful, but still limited.