I think this is a great show. The science is sometimes a bit suspect, but I realize they need to do that for plot development. The best part of this show is the characters. It's one of those shows that you find yourself emotionally invested in the characters. There's not one of the characters I don't like. They're all complex, sometimes flawed, sometimes noble, somewhat eccentric, but always interesting group of people.
Bob with Asperger's is probably my favorite character, but David, Caroline, Carlos and Mayko are also fantastic characters.