Funny but it could be better.
The show is just very specific for the crowd. Alot of the idiots who have been tuning into comedy central to watch a bunch of people exploit stereotypes, (Carlos Mencia, Larry the Fake Redneck guy) are going to bomb all over this. I agree that it is a bit too leftist, as much as I really enjoy Cross's uber left sense of humor.
I personally find the show hilarious, because I love the voice acting and the inside jokes, but I can easily see how other people would hate it, and I can't really blame them.
The terrible animation is a call back to Dr. Katz, which as a hilarious show that was more based on content than appearance, and the same people who complain about the animation are the same people who would have hated the Office UK but love the Office US.
For the record, no comedy central cartoon will ever hold a candle to Primi. He is like Butters but funnier, with half the lines.