Without rehashing plot or detailing what happens in the book, let me just say this: I really liked the characters and the shifting point of view as well as the storyline! Rarely does a novel come along that brings out so many different moral issues that can be discussed long after the final page is turned. What makes a person human? How does the loss of hope affect the way that people live their lives? Does a vision of a medical advance that can transform the nature of humanity ultimately mean the destruction of the species? And what of using convicted killers as human subjects in a testing program? How far can/should humans go to protect each other and save mankind from predators and threats? All questions that arise during the course of the novel.
Bottom line: order it today! You won't be disappointed though you should definitely set aside a hefty chunk of time so that you can devour it quickly.