@Coco_pierrot: I had a similar experience. It's pretty well designed and polished, but it just wasn't all that fun for me.
I rarely use voice chat, but this game would greatly benefit from it, since it is so team oriented.
I didn't like the motion controls at all, and didn't realize they could be turned off until near the end of the demo.
I may try again this afternoon, but the likelihood of me buying this game is slim to none.