Based on what I've seen so far, I think the probability that this is actually better than GPT4 on the kind of real world coding tasks that I use it for is less than 1%. Literally everything from Google on this has been vaporware or laughably bad in actual practice in my personal experience. Which is totally insane to me given their financial resources, human resources, and multi-year lead in AI/DL research, but that's what seems to have happened. I certainly hope that they can develop and actually release a capable model, but at this point, I think you have to be deeply skeptical of everything they say until such a model is available for real by the public and you can try it on actual, real tasks and not fake benchmark nonsense and waitlists.