More keys?
Also an option to use your keyboard would be c000l

i dont get it:(

Brilliant
Needs more

it's not comepletely symmetrical, that would be an improvement.
maybe add peddals bound to different Keys. (you know the ones that lengthen the sounds or soften them and maybe the , . / keys would work for that?)
also it might be fun to add a list of songs you can play with these keys, there must be some, right?
and maybe you can bind the keys on the piano with the keys on the keyboard like: a=c, s=d, d=e, etc.
the sound is good and i like simplicity, so there's no need to make it a complete working piano pre set with one million midi songs or a whole list of piano skins, but as it now i can't give it more than 3.5 stars.

i cant play a normal song here otherwise its better than most piano's out there