I don't know; I might be incorrectly evaluating the word "raunchy".
It's a "slice of life" series built like a fan service vehicle, and the fan service is really good. Plenty of cute girls with short skirts!
Following Steve's link to Ubu Roi's site I was able to read another opinion and some comments--and find that there are a bunch of people who agree that it's "raunchy" and terrible. In fact Ubu Roi said it was the "worst pointless raunch-fest" of 2006!
Look, when I'm going to look at a fan service series I want it to be raunchy--the definition of "raunchy" being "earthy; sexually explicit; lewd". (Not the other definition, "grimy".)
I think it's refreshing to see a series in which high school girls are not portrayed as perfect creatures who are always prim, proper, neat, and elegant.
This means one of several things. Either:
- I am simply a more sophisticated anime viewer than these other people
- I have absolutely no taste at all whatsoever
- ...or I am a pervert.
Further bulletins as events warrant.