I find it useful when I'm working with some unfamiliar technology. It can get me up and running much faster, and even debug code to some extent.

I used it yesterday to fix a problem with my makefile. I couldn't see the issue, gave it to chatGPT. It gave me some code that didn't actually work for some reason, but which had the correct solution to my problem in it. I just ported over the solution to mine, job done. This was after spending a couple of fruitless hours reading documentation and blog posts.