"Makes it feel" - that's the whole point. It's an illusion. The quality of the AI's response depends heavily on how you use it. In short, if you tell it "Make a game," it won't succeed. You still need to do everything yourself, you need to have skills in working with a game engine, and, of course, the skills to fix the errors in the code the AI produces.
Regarding assets, you may encounter the problem that assets will look different, and your entire game will look like a multicolored AI slop. I would recommend against using it, as it's unlikely to look good. Even simple shapes and solid colors look better than AI assets with their artifacts and inconsistent styles.