I heard of it as a movie first, and it looked interesting. When I checked out the graphic novel, though, I wasn't really interested. I did finally see the movie a couple weeks ago, and it was just okay. A few specific scenes and conversations were amusing, but the comedy didn't hold throughout the film.
I guess it doesn't help that I didn't much like the plot material or the main characters, does it? Some scene girl who dated a new guy - and even girls - every week all growing up, dumping them for shabby reasons? I do not know why our main character would go loopy for her at first sight. And I agree with Chris-kun anyway: Scott was a huge jerk.
Visually, the movie was pretty cool. Comedically, it had a few moments. Story- and character-wise, I found it profoundly dissatisfying. >(