I've found it can just about be useful for "Here's my data - make a schema of it" or "Here's my function - make an argparse interface". Stuff I could do myself but find very tedious. Then I check it, fix its various dumb assumptions, and go from there.

Mostly though it's like working with an over-presumptuous junior. "Oh no, don't do that, it's a bad idea because security! What if (scenario that doesn't apply)" (when doing something in a sandbox because the secured production bits aren't yet online and I need to get some work done while IT fanny about fixing things for people that aren't me).

Something I've found it useful for is as a natural language interface for queries that I don't have the terminology for. As in "I've heard of this thing - give me an overview of what the library does?" or "I have this problem - what are popular solutions to it?". Things where I only know one way to do it and it feels like there's probably lots of other ways to accomplish it. I might well reject those, but it's good to know what else exists.

In an ideal world that information would be more readily available elsewhere but search engines are such a bin fire these days.