It's good at cleaning up decompiled code, at figuring out what functions do, at uncovering weird assembly tricks and more.
Anyway, we're reaching the point where documentation can be generated by LLMs and this is great news for developers.
Not so much when you have a lot of code from 6 years ago, built around an obscure SDK, and you have to figure out how it works, and the documentation is both incredibly sparse and in Chinese.