I have played for a long time, but then ads came along and they are so constant. That ruins the game, it would be 5 stars but there are too many ads. (Edit) I haven't played this game for a while but decided to come back to my old favourite. Still disappointed about the ads but glad the game is still free. I like the new features the developers have added. Still 3 stars though for the excessive amount of ads. I know you need them to keep the app free.