Decent storyline. A surprise twist! But there are a few things that also really have me unhappy and not very skeptical about continuing as a series. 
 The good- loved the twist toward the end. The zombies were part classic, brain gorging undead. but also some were different, more unique, intelligent. So that leaves me curious what is going on. 
 The not so good- The characters. I did not like them. The MC is a total jerk and troublemaker that drove me about nuts. But luckily there is some improvement and understanding over time. Their are a LOT of grammar and spelling errors. Or just plain wrong words that make no sense in the sentence. I have to question if this was ever edited. And it is published by some big companies so I was a bit shocked there. I usually overlook mistakes but there were too many. Too many spots I hat to stop reading to make (hopefully) some sense of a sentence. Especially the first half of the story. The second half actually had noticeably less errors, or at least more subtle. 
 I plan to give the next book a chance but mainly off hearsay that the series improves. Fingers crossed.