It is very original, because it proposes a new way to live at the school, without avoiding the normal problems that every school has.
The images are good, and are done with the contemporany style, that is characteristic of being full diversed colored. Although what is actually told as fanservice, didn't service to me at all. I also think that it would be a better anime if the quality of animation in the summons' battles was better.
The opening and the ending are really good, as they made me feel to continue watching this anime. Although the soundtrack during the anime is good, could be better.
They are really funny, but I thought Akihisa, the main character would not be a pervert, because Kouta already does that personality.
Baka to Test to Shoukanjuu is a really good and funny anime that I recommend to everyone.