All reviews I've read agreed that it's good with Kinect (they usually even said that it's easily one of or THE best Kinect game so far) - but most said that it's still "better with controller", because of Kinect's inferior accuracy and responsiveness and arms getting tired very soon.
But now I think I will give it a try and rent it. Won't be buying it though, as I've read over and over again that it's ridiculously short for a full-priced game... :(