This is without doubt one of the funniest animes released in the past few years, and I have never seen parody done so well since the original Jungle wa itsumo hale nochi guu (especially Michishio Nagasumi's pardoy of Ken from Fist of the North Star, and Runa's father as the the terminator).
The art style in this anime, like most parodies, can take a little getting used to, but it doen't really cause headaches. The characters have all have their own quirks and foibles (San-chan's sakura petals appearing out of nowhere for instance, and Nagasumi's first kiss - I laughed so hard I got cramps), but these traits enhance the characters.
One of the biggest plus points for this anime is the ending. All too often in anime we see a great series end with a whimper. Not here. The ending was brilliant in both it's seriousness and it's humour - in other words it's seriously funny.
I would recommend this series to anyone who likes jaw dropping, side splitting, mind boggling humour. I have laughed as much since I first watched Inukami - now there's ashow that's SO wrong :D
