I love South Park to death and was dissapointed by the game. Played pretty meh, and the writing wasn't great. Too much fanservice and jokes recycled from the show, and not enough original jokes. The original jokes such as the finding jesus sidequest were fucking hilarious, but there just weren't enough of them.
Sorry that you were disappointed, but the amount of content and consistent quality in SoT was incredible. The whole story line was original and was some of the funniest stuff South Park has done.