Pure awesomeness. Would prefer if they didn't do with the whole black and white thing, but probably did to tell the before and after. Still can't wait for the next one.
It could've done a little less with the flashbacks, but other than that, I thought it was a very well put together episode. It made the build up worthwhile considering they started with such a grand opening like that.
Also Morgan and Michonne's conversation made me laugh.