I'm aware of it. It suffers from the same issues as WWZ. Max Brooks makes a lot of assertions, some of which are factually wrong (about topics other than zombies, I mean), some of which require the zombies to share the same oddly specific immunities to be true, and some of which is even self-contradictory. (Offhand, the bit that sticks in my mind is he completely contradicts himself about whether zombies can even climb things.)