Enjoyed last night's episode.
The only thing I didn't like was the flashbacks with Hershel. That seemed way too contrived and forced. You could tell the first half of season A, Rick was being "farmer Rick" because he wanted to, not because someone told him to. To have them change that and have Hershel being the motivating force behind that characterization was awkward from a story telling stand point, especially when the first half of the season isn't even a year old. Didn't add up for me.
Other than that, good episode. Going to be a looooooong wait.