Had its good moments and poor moments for me. Rick evading the guys in the house was done quite nicely and felt rather authentic, although the guy in the bathroom seemed to take forever to realise someone had just burst in on him.
The army guy, hot pants girl and stupid scientist seem completely out of place, the soldier is some kind of caricature beefcake guy, the girl seems to think that looking sexy will somehow help in fighting zombies and I couldn't even fathom how the scientist managed to shoot the truck when the zombies were in the opposite direction. Surely they'd have taught him how to shoot? Or better yet, shout for help?
Michonne seems to have had a personality transplant too, whether that's as a result of her earlier experience a couple of episodes back or just shoddy writing, I don't know. She's gone from super-secretive to being open and talkative rather rapidly though.