I've just finished season 1 and loved every single episode, the sentimentality that a lot on here seem to dislike is something I really dig, we here in the UK don't really do it that well, so I always enjoy seeing it in a US series and I really like the characters as well. I'm also glad they didn't spend too much time in the underground complex as that would've been boring.
I hoping one handed Merle returns in season 2, I guess he does, as the actor that plays him Michael Rooker was the only actor that I knew quite well, these series always need a badass one-handed redneck to really ignite some tension
I've missed out on a lot of the posts here, as I'm sure thery're full of spoilers on season 2.