The game as an idea is excellent. I really like working out with the game and even though I do not have a lot of space, kinect picks me up quite good most of the time.
However, the drawbacks:
* The coach / personal trainer really must speak less. The guy is simply annoying. For example: Some time ago, Kinect did not pick me up during one exercise. I now keep hearing, every time I make that exercise: You struggled with that one in the past but I know that you can make it today! Really drives me nuts!
* Some exercizes are not being picked up as well as others - for example, stay low squat is a disaster. I squat so that my legs are 90 degrees. I move a few cm up as told to. Feedback is: You must stay low!!!
* Repetitive: When you follow a workout for a couple of weeks, the exercizes are the same all the time, the number of repetitions barely increases. Not challenging!
* Your top score feedback: Sometimes when I am doing the first repetition of an excercise I have done well in the past, the coach says: Wow, you almost reached your top score! Common ...
But again, I really like the game and will keep using it
I recently purchased the upper body / core workout DLC. It was a 800MB download but the session had only 2 new excercizes (?). The rest was just the same.
UPDATE: Oh ok, a couple of the DLC exercizes are included now in my normal routine, nice. The only thing is, it seems as if each exercise has its own "sweet spot". If you move a couple of cm away, you are not tracked anymore. I have this especially with single arm plank and sideways low squat. You would think that the further from the sensor the better but actually, I got detected better when I moved closer.