A very fun game, but gets difficult.
The controls do work very accurately, it tracks all of my kicks and punches correctly. If I do a jump kick, the camera detects my jump kick. If I do a superman-punch, the camera detects my superman-punch.
It does not have the glitch that the PS3 version had. I don't own it, but I read that with the PS3 version, the eyetoy camera has a hard time detecting all of your body parts. Sometimes your on screen image will be missing a limb, missing an arm, or missing a part of your leg. It was recommended that you use a solid color background in order to avoid that "missing body parts" glitch.
The Kinect camera does NOT have that problem. It is fully able to see 100% of your body, with no errors. The Kinect camera has perfect body detection.
The game is a lot of fun. And I highly recommend buying it if you can find it on sale.
There are only 2 bad things that I can mention:
(1) - The graphics look like a $15 downloadable game. The graphics do look a bit low budget.
(2) - Even on NORMAL difficulty, the game becomes very difficult when you reach chapter 9. At chapter 9 you will meet some enemies who have regenerating health. You have to fight a bunch of these guys at once, and you also have to fight evil bat creatures. These "regenerating health" guys, with the flying bats kept killing me repeatedly.
Luckily, the game has a chapter select option, so whenever I play the game another day, I can go directly to chapter 9. I will most likely need to change the difficulty from Normal to Easy.