IGN
I've heard people dismiss Kinect as a viable control option because there's no vibration feedback. After trying both control options for Child of Eden, I found that I preferred Kinect's superior responsiveness. Yes, Kinect makes navigating Eden's databases far easier. In fact, the analog sticks seem clunky compared to swiftly moving your hand around the screen.
http://ie.xbox360.ign.com/objects/143/14354640.html
Joystiq
Though returning Rez players seeking an authentic experience can use a standard controller to adequately romp through the colorful campaign, Child of Eden is made for motion controls.
http://www.joystiq.com/2011/06/14/child-of-eden-review/