I think my experience has been sort of between you two. Maybe 1/3 times it's spot on. The rest of the time, there is some minor tweak I need to make (it gets a parameter or variable name wrong). I've yet to hit cases where the code it generates looks right but doesn't run as expected, thankfully.

I've only had it for about a week now but overall I'm happy with it. None of the code I'm writing is crazy cutting-edge stuff and in aggregate I'm sure it saves me more time than takes, including the time I spend reviewing and potentially changing the generated code.