Been using Copilot instead of CharGPT but I'm sure it's mostly the same.
It adds comments and suggestions in PRs that are mostly useful and correct, I don't think it's found any actual bugs in PRs though.
I used it to create one or two functions in golang, since I didn't want to learn it's syntax.
The most use Ive gotten out of it is to replace using Google or Bing to search. It's especially good at finding more obscure things in documentation that are hard to Google for.
I've also started to use it personally for the same thing. Recently been wanting to startup the witcher 3 and remembered that there was something missable right at the beginning. Google results were returning videos that I didn't want to watch and lists of missable quests that I didn't want to parse through. Copilot gave me the answer without issue.
Perhaps what's why Google and Ms are so excited about AI, it fixes their shitty search results.
It's the only thing that might make me give up my fiesta st