So I tried this game out late at night just to satiate my curiosity, but it turned out to be not all that bad. The puzzles are actually challenging for once! There is an option to watch ads and skip to get to the 'good part' (different from what one would expect, but still good nonetheless), but I tried not to abuse that option too much.
I also like how each girl has a different story and setting behind each photo, and the puzzles are just to move the story forward. It's all episodic - no direct correlation, except for eye candy and some references.
There was music? Probably? I don't really recall.