Ignore these people. Just because they got bad luck doesn't mean this game is bad. Gameplay requires some strategy which I appreciate. Auto battle is unlocked unless you have already beaten the stage you are playing. Graphics are average. Idc about the storyline. The game seems fun so far since I have yet to run into a pay wall.
I must be lucky, I managed to get 1 5* from the free 11x tickets they gave as pre-registration bonus. It was a female tank character too, so I guess I'm happy with that. Though the arena is the same old same old crap. If you don't have the best characters with the best armors/gear, then you don't stand a chance in arena.