I had a feeling that this movie would attempt to ride the coattails of the previous films, and I was right. All of the funny parts are shown in the previews and the storyline was lacking. I would wait for this to get to the $1 Redbox. It was very disappointing.
My kids (age 7 and almost 4) loved this movie in 3-D! I thought it lacked much of what the first 3 Shrek films had to offer, but it was still very good and offered a little adult humor too. Spending the time with my children was what made this movie-going experience as great as it was, even if the storyline left a bit to be desired.
If you are a lover of the SITC cast, I would recommend seeing this movie ONLY for the fun of the fashion and character personalities. I felt that the storyline was lacking and this sequel fell very short of the original. I would not go see this a second time.