I feel like many of the reviews already posted on Amazon thoroughly discuss some the book's issues, as well as the plot. The author is a very strong writer; the survival tactics each character plans out, as well as their reactions to the crises, are very well thought-out. The characters, and the author, don't waste time attempting to deny or define what has happened, but rather, they're attempting to cope with their new reality while trying to understand how they can rebuild. The most interesting character, Alex, undergoes some interesting character changes that were predictable, though the slow progression rewards the reader with intense action sequences and conflicts that help inform the character's change.
The story is extremely well-written, and the dialogue is strong. Descriptions are adequate and not overblown. The word "zombies" is used without hesitation; no matter how many other authors attempt to use a different word to describe the undead, it's obvious that the first thing we might think is this very word, so why complicate things with different terminology? Indeed, Gurley's characters are very pragmatic in their approach to the apocalypse.
It's important to note that the plot is slow to move forward; rather than one coherent event, there seems to be a series of challenges that obstruct the characters. From a survival point of view, this is spot-on; the book serves to create a more broad picture of what might be required to survive, including several challenges one might face. Since this is a survival tale, the book is light on action, and it some of the sequences really seem to drag, with not a lot happening. The book may seem a bit slow to some readers. There is one important similarity to "The Walking Dead:" these characters aren't going to save the world, and the zombies are hardly the greatest threat. If you're a zombie action buff, you may not enjoy this one as much, however, if you love survival tactics, solid writing, and excellent character development, this one is for you.
I will check out more of Gurley's work in the future, because I truly feel like this is a gifted writer. With so much talent, an author like Gurely can craft an interesting story.