Just watched the first three episodes, but so far I'm loving this series. It brings an emotional side to the zombie apocalypse genre in a very lovely and impactful way. Episode three is one of the best episodes of television ever, pretty much up there with Castle Rock's Season 1 episode 7 "The Queen". Very powerful mini story with wonderful acting.
EDIT AFTER THE END OF THE SEASON:
I'm staying by my initial reaction - this show is really worth watching. It's visceral, emotional and most of all - human. Highly recommend.