I never thought i would say that but now there is an addition to the game i really don't like:
The new material which allows you to limit break your Rainbows is way too expensive. 400 Rainbow Medals just to get one girl to level 100 is ridiculously overpriced in my opinion. It's only for harcore whales i guess.

I hope that won't be necessary to beat future maps further down the line. If so that would be troublesome. But i speculate too much again...