It's fucking awesome... I love the game, its probably the best non Zelda game on Wii right now. The tilt sensor works great for this type of game, some of the level designs are really creative, you get a bunch of different marbles to use each with different characteristics (like speed, bounce, etc). Music in the game is pretty cool and catchy. Only problem is the game is a bit short (only 45 regular stages, with a couple bonus stages), but to try and get gold trophies in every level will take a TON of practice. The two player "race to the finish" mode is cool, as well. I definitely got my money's worth.