It was fun in the beginning. But after getting to higher levels I habe been getting super hard levels every 3rd or 4th level. It has taken the fun out of the game. I am not completing challenges because I get stuck on a level for a day or two, finally beat it, get three levels ahead and stuck on another super hard level. I am currently on 4760 and think it is time to stop playing for good. It is no longer fun.