They are using the manga as a script. So there's no element of surprise at all.The only bonus in such case is godly voice acting and animation. But this is plain boring and vulgar. I love fanservice and sex references. But here, it's more like bad porn.
Also, following the manga to the letter creates an unpleasant rythm.
Maybe I'm hard on that show because of some expectations I should'nt have in the first place.