It's the uncanny valley of AI. It's still not quite good enough that you can trust it blindly on a big codebase, so you still have to read and understand everything - which is often harder than just writing it up yourself.

Pretty much, The one thing I use it for is as a sanity check, pretty much "Look at <SomeFile>, point out issues you see, summarise them tersely" and it'll spot stuff a code review by a human might have spotted (in the mythical land where people actually do code reviews properly and don't just flag a spelling mistake to "show they looked at it").

Beyond that I don't trust it at all and I still write all my code the meat sack way.

Trust is earned not given and it hasn't earned it yet.