But they don't have an acoustic piano built in (yes, I know, the CP has an acoustic piano as an easter egg, but that doesn't count).

Playing acoustic piano patches on my reface wasn’t a good experience. Seems all those light actions have hyper sensitive black keys.

Yamaha’s piano presets are perfectly fine for the intended use case. Have a jam with it, sit it in the mix, you’ll see .. of course it’s not going to be their concert grand ..