Biggest issue is the updates!!! I've never had a game tell me it needed to update only to have to wait several hours, if not a whole day, for the update to be available for download! Quite a problem when there are timed events. Decent game but energy runs out way too fast. Max energy level doesn't increase as you progress as it does with other games and the only way to get more is to wait or spend gems or money. I'm currently stuck at level 35 and the next area doesn't unlock until level 41.