After reading Dead City and Apocalypse of the Dead I found this initially a little slow. Sometimes Joe gets a little too wrapped up in discussing police life. However, the pace soon picked up and I was completely hooked. I enjoyed this every bit as much as the first two. This author knows how to get under the skin of his characters, as well as being excellent at writing past paced action scenes. Read the trilogy (in the order I listed) and you'll have yourself a really great read.
Just wish I could stop imagining people going zombie in the street, though!