It's a calendar of computer-generated Hot Chick cartoon-ish pics, and it is free. It probably won't win any awards (but hey, if Tracey Emin's garbage - literally! - can fool the art critics, why not this?) but I think it is definitely worth the money. Actually, I think it is worth the time and effort it took to download, too.
Not as good as a Playboy calendar, but nowhere near as expensive either. You could do a lot worse than this.