I really felt that Jerry and Spike's portions of the script were the best. It seems like Jerry's comedy routine acted out and animated. The only thing I really hated was Rene Zelweigger. I know these films are celebrity driven, but Rene Zelweigger?
I also feel this was one of their better films. I disagree with the review on some level there. It was leaps and bounds more enjoyable than Shrek 3, and a gazillion times better than Shark Tale (Jack Black's role was the only thing even remotely interresting).
The one thing I will give it, the character designs are for the most part cute. A lot of times in Dreamworks films, the characters look terrible. I'm gonna come clean and say this, but I think the human characters in Shrek were beyond hideous, especially the king. And I hated the fish/human hybrid faces in Shark Tale.
That said, I found the plot to be, while dramatically unrealistic in it's interpretation, a very important lesson in keeping the Honey Bee from becoming extinct. Much as I really hate the stinging little craps, we need them. It was almost like an ecological tale that didn't come across too preachy. I'd give it a C, not a D.