The end was definitely interesting but I disagree with people always complaining about the show moving too slowly. I can understand people feeling that way but really what do you expect? It's a TV show about the zombie apocalypse, not a movie. Every single minute can't be action-packed. Even zombie movies aren't like that and they're only ~2 hours.
Then again I rarely complain about movies being too long, so I guess it's just a personal thing.
I thought the first season was great. I was just a bit disappointed with the first half of this season since it seemed to follow a plot that didn't really go anywhere (aside from the first two episodes). Hopefully this sparks it up again.