Amazing. I've only seen one other piano that comes close... on Star Trek episode #78 "Requiem for Methuselah" Spock plays a piano that looks a lot like it. It was also used in Citizen Kane but no one ever notices it because the film is b&w.

As for how it sounds, I don't think that's half as important as how the action is. An instrument only sounds as good as the player makes it. I bet the "vibe" coming off that thing is enough to make anyone play like Rubenstein