I liked it a lot, I was in the mood for something silly. All of the theatrical gimmicks had me LOL, and Dean looks FINE in black and white. Sam too, of course, especially in a suit.
I rejoiced many times (especially at Sam eating! and Dean being rehymenated? OMG boy, you make me facepalm sometimes but I love you, the pizza stuff was golden too), and it was just funny to watch the effects they did with the intro, interlude and the end.
I liked the girl and Dean gets to me even with his most obnoxious player ways. I could watch him make out for a whole hour, no problem. (especially with Sam. but that's a personal choice.)
all in all it was fun and I enjoyed =D