It’s pretty ok, progress stops fairly soon. – Princess Connect! Re: Dive Review

You just come to a stop half way through leveling up and even spending real money wouldn’t really help speed things up. And the difficulty curve doesn’t work either. You just go from easy to undoable real fast and it’s not a skill based game, all about numbers. You just can’t progress till you play for a few more months straight just to clear one level only to get stuck again.
Review by Boba Fettish 42 on Princess Connect! Re: Dive.