Best introductory episode of a new Doctor ever. I like Matt and Karen. I could see her displacing Martha as my favorite companion. I like the new credit sequence, but I'm not so sure about the new version of the theme song. I liked the last one best.
It seems they have brought the scary back. I've always heard stories about kids being scared by the classic series. I never really understood that and I don't think the revival has really had that a lot. I can imagine a new generation of kids watching it from behind the sofa.