I went with my movie buddy and saw this today. I read two totally different reviews in our newspaper, one critic hated it and the other one said it was on par or better than the first. After seeing it, I'd side with the second review.
My suggestion is to abstain from fluids before watching this movie as you don't want to miss anything, especially the end credit scenes.
Took the oldest boy to see it last night. We were in stitches during most of the movie, as it was hilarious. And the post credits scenes were some of the best yet, everyone in the theater was laughing.