A pretty decent game worth at least a good rental.
The gameplay is interesting. not really too easy to play as some people say. A little bit of a hassle using the touch screen to use vibe powers and moving Peach out of harm's way. Only real negative is the limited use of vibe powers until near the end.
The graphics are good in the game. A little small to look at, but not too bad. Wish that more of cut scenes would instead of being still pictures
Sound is OK I guess. Don't really care for the Happy Joy Joy kind of music in the game. The music could have been better. The other sounds are decent enough.
The value... a good rental from Gamefly, you may be able to finish the game in a few days. I would not recommend buying it until it's price is much lower.