Whenever people say stuff like this I can't help but wonder what on earth kind of projects they work on. Even GPT4, while useful for things like reformatting or generating boilerplate code and stuff like that, it's still a far cry from any decent dev I've ever worked with, especially if you're not using a popular language like JS or Python.
My usual PRs at work are pretty big, complex pieces of code that all have to actually work when integrated with the larger system around it, no AI tool I've tried so far has come even close to acceptable here, other than for generating some boilerplate code that I would've written myself anyway. But even with the innocent-looking boilerplate there's always a weird gotcha that isn't obvious until you really analyze the code closely. It ends up saving nothing more than a few keystrokes, if that, yet people say all the time that they're generating entire pieces of software by gluing together code it spits out, which I find absolutely insane given my anecdotal attempts at it.
This can circumvented by going with more elaborate in-depth prompts, but at that point are you really saving on effort compared to the alternative? Is it really more efficient? By the time I have a prompt complex enough for it to spit out something good at me, I could've already bashed out the code myself anyways.
That's not even mentioning all the legacy shit you have to keep in mind for any one line of code, plus whatever conventions and standards your team uses and has etc.
I mean it works great for a function or whatever, but is that seriously what most people are working on? Simple, one-off independent function calls that don't interact in any way with anything within a larger system? Even simple CRUD apps aren't so well isolated.
Don't even get me started on the actual difficult part which is the whole preamble to creating the ticket in JIRA or whatever task management software you use where you're talking with stakeholders and planning out the work ahead, you're telling me you're paying 'Open'AI to do that whole rigamarole for you, and you're doing it successfully?