Pretty decent is a pretty good summary. Once or twice it's taken a shot while I was still lining up, or had difficulty detecting that I was squatting to read a break, but for the most part it's been pretty good. (Limited experience, though; I've only had TW for a couple days.) The Kinect is pretty pricy, though. I wouldn't pick it up for just one game. TW is my second Kinect game that I've played with any regularity (UFC Trainer being the other one) and they both have worked pretty well in terms of detecting my movements and acting as a controller. Plus it lets me control my Netflix player with voice commands; that's a pretty cool feature.