You know, it IS Sayonara Zetsubou Sensei, so you are going to get a crapload of mindfuckery heading at you, from politics to michael jackson to chocolate hearts.
*below are some spoilers coming atchu.***
Story: Just like any old Zetsubou Sensei material, there will be mindless plots, random explosions, and a bunch of ADD worthy material mentioned. But be warned: this anime requires a lot, I mean a LOT of anime and Japanese knowledge to be funny. I mean, a parody of Code Geass, Higurashi no Naku Koro Ni, and cosplaying all at the same time?! Come on! thats crazy! But it is just how this anime
works. Despite this, I think SHAFT failed to make the OVA as good as its sisters, but, you know, its and OVA, they tried their best, and it worked. -7
Art: I have nothing to say about this not because I'm blind, but because Sayonara Zetsubou Sensei never, EVER changed its art style in its 3 runs. And that is fine... please, if there will be a 4th season, keep the karuta-style openings.
Sound: Rhumba and Marionnete and both used in Zoku, so there really was no show of any interest in new music. Too bad, I like the first season's first opening better. -6
Character: Crazy random hyperactive and uncontrollable little girls playing at a suicidal guys feet and making sudden threats to him is just about how I'd describe the characters. Unpredicable!
Enjoyment/Overall: to many, it will have you in stitches, but for many others, it will leave you snoring as your cup ramen slowly turns into udon. If you are the kind of guy that laughs about parodys that involve zombie jacksons and random penguins popping out of the most randomest places then this is the anime for you. As for the normal people, we'll hang out in that corner over there... -8