Disappointed. Not horrible, not up to potential either. I have excellent wifi at home. Every day I get races that freeze mid race. Almost every day I get races that glitch in super fast mode. For a game that puts adds up for every single switch of screen or car, I'd expect at least to be able to win or loose on my own without glitches doing it for me. That said, the potential of this game is huge. Enough so to keep me checking in. Dont expect cash purchases while pushing ads every 30-90 seconds.