The show is a big hit because of the concept (which is great, and the only reason I keep watching) and the strong pilot episode. The actual writing has been terrible.
That's weird. Huge hit, great ratings, money rolling in, so fire all the writers?
Can anyone relate to any of these characters? Officer Rick just wanted to find his wife and son...and then he did....and then he abandoned them one episode later to go back into a city with millions of zombies. Andrea's only personality trait so far is that she really likes pointing a gun at other survivors, along with the baffling decision to hang out with her dead sister until she came back to life as a monster so that she could shoot her in the head. Merle, his brother, and Ed are all southern white guys so naturally they were all various degrees of racist hillbillies who hit women. T-Dog is a black guy so the only personality trait the writers could come up with for him was to have him named "T-Dog." They gave the black woman character about 1 line per episode before randomly having her decide she didn't want to live anymore. Oh, OK.
Then there's the part where nothing on the show makes sense. A bunch of hispanic guys decided to pretend they were gang members so that they could protect an old folks home in the middle of a city full of millions of zombies??? And somehow they're doing fine but the military was completely overrun? That big zombie attack on the campsite where the younger sister died -- did every character on the show forget they were living in a post-apocalyptic zombie nightmare? They were all just sitting around a campfire waiting to get attacked. Also, the first couple shows made a big deal about how sound attracts more zombies but the writers apparently forgot about that a few shows later. None of the gunshots from the campsite zombie attack seemed to attract any more zombies, nor did Andrea idiotically shooting her sister in the head the next day. And none of the characters even expressed any concern about that noise. Oh well.
Lastly, this show may have finally ruined slow zombies for me. I know they went out of their way to not have the running zombies from the 2004 Dawn of the Dead or 28 Days/Weeks Later but the zombies on this show are so slow that it's impossible to imagine them overrunning any law enforcement or military group. We saw some military guys bite it in the flashback at the start of the season finale when one guy was standing with his back to a door that a zombie burst through (he then accidentally shot his friends when attacked). Assuming the rest of the world's military is smart enough not to stand with their backs to doors in buildings full of zombies, I think I'd put my money on the living. At least running zombies make a rapid outbreak/fall of society seem plausible (see opening to 2004 Dawn of the Dead or all hell breaking loose in 28 Weeks Later).
Maybe the new writers can make this thing work. The first batch definitely didn't.