Very addictive, if you close out of the app before you finish a single player game, when you go back into it, it'll ask if you want to pick up where you left off, which is very nice and convenient, in my opinion. Have had a few issues with trying to "play online" & "play online with friends" I'll be connected to the internet but it'll say "no internet connection" but sometimes it'll work fine. Other than that, its great.