There are so many things which are wrong about so many of the relationships in this anime. It basically reads like a high school student's sexual fantasies put into animation. So depending on what you're wanting to get out of this the scoring differs. For a romance it gets a 6, but for a watch-at-midnight-by-yourself anime it's more like a 7.5 because they are fairly gratuitous with showing off body parts and uh, physical recreation.
There is a semi-decent storyline compared to other animes of this sort for the different story arcs, but because each one is so short there's pretty much no feels for any of the characters. The way they do the transitions between each story arc is quite good though with same scene-different ending though.
I watched the first arc in full but then basically just skipped to the bits with the action. One thing which really annoyed me though was how frequently they get all the girls naked in this but have Haruka (the male lead) still with all his clothes on. Kinda sexist. And my goodness, how they exaggerate the size of every female's breasts. Character art design almost certainly done by a male.
The OP and EN themes are really beautiful though.