This. As a software engineer it has really reduced the mental load when starting a new project from scratch. I can quickly come up with the skeleton for a project and any boilerplate functions and just focus on making things work.
I messed around with it back when it was apparently better than it is now, and it sucked ass. Fed me outdated info, broken code, and overall was a nightmare.
Tried it recently real quick because I was converting my code, and I didn't want to dig in the documentation, and the info ChatGPT spit out was 100% false. Not even broken, just wrong.
It can be surprisingly helpful. I needed a small program to change between three "states", two separate programs that use the gpu and can't run at the same time that I run on a server, and an "idle" state where none of them are running. And a simple web ui to check and change state.
Note that it did mess up the transitions code a bit, but it was easy to fix after a brief look at the documentation. However, the http page worked 100% straight off the bat, and the flask code and running of the commands worked perfectly. It's not a big thing, but a lot of "boilerplate" code and double checking docs was avoided. And this is the free tier.
I feed it the relevant documentation first. It has large enough context size to handle it. But even that's unnecessary as long as you're not using a niche library.