I have played this game on my computer and thought of it as very fun, not glitchy, thought through, and enjoyable. But now that the app has come out I have to be honest and say that I was disappointed so far. The reason why I say that I am disappointed is because the game was very glitchy (not smooth) and the controls werent as thought out as I thought they could be. But besides that I still liked the game, and I hope that you can improve what I suggested.
Sherry R. about Fireboy and Watergirl: Online, v1.2.1