I love the concept, but it lags, and freezes all the time on the 4S and Ipad 2. More so with the 4S, I haven't complained to much, because I figure it will get better with time, but when I go on you-tube and see it working flawlessly I get a little upset. Not sure what the deal is. I thought it might be related to the fact that this apple TV is a distance from the WiFi, so I will try it with my other apple TV that is about 10ft away. Oh and I will also add that the lagging and freezing takes place on graphic intense apps like Modern Combat 3, other then that it seems to do ok. Best game ever, modern combat 3!!!!