I loved it. I read the books, and my theory now is that they pretty much spoiled book 6 for us. Not just the WW thing either, but the whole Bolton-Stark-Snow thing. They're bringing that plot forward a bit - probably to bide their time for Bran's plot, and because it just makes sense for the show. I dunno, we'll see! I really want to hear Dracarys being shouted at a White Walker.