Overall, I liked this book well enough. You know the M. Night Shyamalan movie "The Village"? It is kind of like that, a little: A colonial-type community is stuck in an isolated village that is surrounded by a scary forest inhabited by creatures that may or may not kill and eat them. I like that sort of weird problem. I'm okay with that.
The book enjoys an annoying (but minor) degree of melodrama (the Sisterhood keeps THE SECRETS?!! SECRETS!!!!) but teenagers are melodramatic, so I suppose that suits both the young adults in the book and the young adults who are (theoretically) the reading audience. But the zombies and the plot were enough to keep me plugging through it. It was sort of good... and evidently good enough to spark me to read its sequel, The Dead-Tossed Waves (I like the cover, don't you?).
However: I'm pretty sure that description doesn't fit you you, because I know exactly who all five people are who read this blog. :)
P.S. Just as I was Googling The Forest of Hands and Teeth to find an image of the cover for this post, I discovered that a movie adaptation of this book is set to come out in 2011. Huh. Not really new news, to people who care, but I did not know that until just now.