I really enjoyed this manga as well as the OVAS. It's one of those mangas you'll love or you'll hate. The characters are charismatic and well defined. The overdramatic developing of events are not liked by everybody but it has some comic relief when needed.
It also has some yaoi scenes, that don't go as far as being explicit but they leave no doubt about what's going on.

The OVAs design is not bad, but it doesn’t give the same feeling that the manga. It fixed some of the major mistakes from Ozaki’s art style but they are not very similar, but maybe my opinion is biased because I like her doujinshi-like drawing style.