My biggest complain is that sometimes, for absolutely no reason, the game will just completely wipe all of your data. I spent several hours over the course of a couple weeks creating characters for a story I was gonna make, only to log back in about 2 hours after making the last character needed to see that every single character I had was just. Gone. Back to default settings. If this happens again at all, I might just uninstall Gacha Club for good, because it's not worth the effort and stress.