Same, I have Gemini Pro 2.5 (now 3) exclusively implementing new designs that don't exist in the world and it's great at it! I do all the design work, it writes the code (and tests) and debugs the thing.

I'm happy, it's happy, I've never been more productive.

The longer I do this, the more likely it is to one-shot things across 5-10 files with testing passing on the first try.