I'm about 100 pages into the second book. I think they are brilliant. What I like about it is that the characters are flawed. It makes the story more human. In nearly every fantasy book I've ever read all of the characters were super human or perfect. Lord of the Rings has a touch of the Game of Thrones character traits in the Hobbits, but the rest of the characters are great wizards and warriors. In the Sword of Truth series and the Tales of Drizzt, the characters are nearly perfect, or the combination of the characters (Sword of Truth) emulates perfection.
Every character in Game of Thrones is flawed in some manner, which makes the story more human, more accessible and easier to immerse yourself into. Never saw Eddard getting beheaded...that came as quite the shock.
Anyway. Really enjoying the series.