People are really bad at evaluating whether ai speeds them up or slows them down. The main question is, do you enjoy this kind of process of working with ai. I personally don't, so I don't use it. It's hard for me to believe any claims about productivity gains.
And to clarify, I don't mean output as "this feature works, awesome", but "this feature works, it's maintainable and the code looks as beautiful as I can make it"