Hi Diki, very intriguing keyboard. Not so sure about your choice of utube clips, though. The guy is obviously extremely talented, but , guessing from some of the comments , not quite our type of music?
Maybe a clip featuring how it works might have had a different response. It’s not like your normal type of keyboard. I would imagine for strings and orchestra’s it would be amazing, but maybe not for piano.
Came across a guy who does film scoring, he just raved about it. ( utube)
Apparently there’s a Rise2 coming out, or has just been released.
Good luck , hope you get a chance to try one.

They’ve got a demo night at my old music store back in Sydney, would have been down there in a flash. Miss the city. Haha.