This is a Reverse Harem, and it is a well done one.
You have your dose of comedy and gore and drama, all knitted perfectly.
The characters are colorful and you get your bit of social critic too, if you are paying enough attention.
The only thing that I wouldn't like about this are actually two things, and are the most common flaws of anime: the filling scenes that add nothing to the story nor the characters or even the comedy or enjoyment of the show AND how the 'ending' was done.
At this rate I am very well aware of which kind of matches I am playing with, so I already know that finding a satisfying ending in anime is like finding the frigging holy grail. Some said that somebody has found it, but nobody no longer knows where it is hidden.