When I started reading this yesterday I started with no fore knowledge as I had not read any of these (I had stopped reading the coming before the ones in this one came out) and could not wait to see how things with. This book kept me pulled in and I did not want to stop and I didn't stop until I finished it. Yes there were tears at the end with me exclaiming "Oh no" while I covered my mouth with one hand. I love these comics and when Kirkman goes bleak man does he go bleak. He does not beat around the bush with it. It is a full in your face bleakness. And the ending?! Such a big cliffhanger. Got me excited to for what comes next. 
 As for a comics to show I'll say this: I love the show (having watched it from the beginning) and I love that there is just enough differences to keep the comics fans happy but not bore them. So I can't wait to see how they bring the story to life in the show. So much awesomeness in the comics that it will be hard to mess it up.