I've just watched the first 5 episodes of this and I have to say:
AWESOME!
Fantastic animation, characters are well drawn and already starting to be defined and fleshed out. The zombies and how they act has been clearly defined and it's non complicated to understand. The emphasis is on the survivors and how how people change with crisis (reminds me of the Living Dead comic book series). It is just fantastic all round.
I'm sure I'll have more to say as I really get into this series but for now, I'm hooked!