Its OK, but don't believe the hype.
It takes some time for this feeling at times. Even now I still get hooked for about 30 minutes, but unlike say Bullet Candy, its not for an hour or so. The graphics do the job on the tin. Basic- but its very indie. The soundtrack is whatever you want it to be. I would say the Orange Box soundtrack is a great play- if you have the game via STEAM.
I do feel the game is too easy, nothing wrong with that I guess, but it doesn't help the games long term play. I would say this would be a great IPod Wheel game, but EA has that hit with Phase...
I'll leave you with this: Its fun and meh at the same time. -Evil Tree