Just got back a couple hours ago from picking it up. Good, good stuff. Cannot wait for season 2.
Speaking of which, I just read an article over on comicbookmovie.com on Edgar Wright having been asked by Darabont to direct an episode. He turned the offer down because he loves the show and is afraid he'd fuck it up. 
Personally, I'd love to see him do a straight, dramatic horror story. I think he could pull it off; as we can see from Shaun of the Dead, Hot Fuzz and his fake Grindhouse trailer Don't, he obviously knows his genre stuff.