I rented this for my kid who is always sitting on his butt on the computer. I wanted him to get some exercise. He loved this game and it wore him out. He still kept playing. He thought it was funny how his picture was up on the screen hitting people and in the comics.
I've played just about every Kinect game out there. As much as I love the Kinect, most games feel bloated and sluggish.
WIth this game, the action is fast and the game is the most responsive I've ever seen in a Kinect game. That's because it uses your own real-time image, not a cartoon avatar, as the main character. In a Street Fighter-type setting, you kick and punch not by mashing buttons but by kicking and punching in whatever way feels most natural to you. The game is remarkable in how it literally puts you in the game. It's a blast to kick and punch at enemies approaching you at all sides like a real movie ninja.
I can't recommend this title highly enough. It really starts to show what the Kinect is capable of.