Unbelievable fun...
We went home and started to play. 18 hours and 2 meals later, we completed the game. The odd thing was although we had just beat the game, we wanted more. So we played through it AGAIN.
Over the next year we played the game with a high "frequency" : ) I got so good at this game that I could flawlessly play over half of the songs blindfolded. I kid you not. If you have played this game at all you will know how big of a feat that is.
Basically, this game is one of a kind. There is NOTHING like it out there. If you like challenging, music based games, then this is certainly something that you should check out.