My interactions with Gemini tend to be fairly slow, but it's because I don't give it any extra permissions, make it research and plan an implementation first, and check each file update one at a time.

So far it has still been a bit more productive for me, though the margin is low. I get more product sork done on the order of 5-15%, I tend to have more test coverage as I focus more heavily on that, and I can focus more often on architecture. The last one is a win for me, I prefer that work and find that I can review code quickly enough to make it worth the tradeoff.