Loved it.
It really brings a breath of fresh air to the Mario series, which would of bored us all to death if it hadn't. New and innovative gameplay materials make it very somewhat nostalgic when looking back at the N64's extremely popular Mario 64. It does go back to it's true roots in a couple of ways though, such as star collecting, but still brings new qualities to the table to keep gamers intrested.
Overall, one of the biggest releases for the system so far, not to mention very fun to play.
I think we got a winner for best Mario game for the Wii guys