A majority of the stuff I hear is good. I've read quit a few articles how the show is ticking off some the religious zealots.
I've been following those that have campaigned to get the show cancelled. Look, the show isn't perfect when it comes to certain theories, which is p*ssing a lot of people off. But it doesn't lessen the awesomeness of the show. It does a great job of getting you interested in Science, which is ultimately the goal of the show.