The no control experience is really shown off at its best here as you actually get a good workout moving your body to the beats. Yes, you will have to get off of the couch and start moving back and forth to the rhythms. Overall the Kinect cameras will do a wonderful job at figuring out your motions and, because the game was designed this way, you won't notice any lag. That's right, you dance in time with the person on screen (literally mirroring their actions) and then the game will take a moment (to which you won't notice because you are dancing) to decide how well you performed the action. In other words, don't worry about lag time because Harmonix has already factored that in perfectly, thus making gameplay smooth and easy to pick up on for even a beginner. Again, my mother's friends were very quick on picking up how to play the game.