Like the other reviewers on here, I rented this for one day and was not happy with it. I went right back to Kinect Sports bowling. It just had a boring way about it and the controls were off sometimes. Did look a lot more realistic and the graphics were okay, but overall the gameplay was totally boring and thats not what I want in a video game.
First off the menus are very hard to read, the text is to small and looks like it's written for a computer or something. It's very choppy in following your Kinect movements. It does have extra spin that and an aiming that's very hard to figure out.
Also I find that it's better to stand still and bowl than to take a step. It doesn't do a good job at reading your movements otherwise.
If you have people over, it's better to play kinect sports bowling. Maybe if you get really into it, you might like career mode. You play 4x4 on that mode though. very hard to figure out.