I really enjoyed reading this book. In fact, I've read it several times, but I wanted to warn people that it is actually a reprint of 3 separate books: The Death of Sleep, Sassinak, and Generation Warriors. That being said, I was glad I stumbled on this version first, because it meant I didn't have to run out to the store each time I finished one of the novels.
I especially liked Lunzie's storyline. She is cryogenically frozen and has to cope with re-learning how to exist in society. Consider the learning curve someone from the 1950's would have if they woke today. And that is only a 50 year jump. She was out for almost 100!
The plot in this and Dinosaur Planet overlap, but I had some trouble with the continuity between the two. I liked this version better. (Probably because I read it first.)
I recommend this to fans of Elizabeth Moon, David Weber and Lois McMaster Bujold. The science fiction enhances the story, rather than replacing it. Jody Lynn Nye can be a little too fantasy oriented in her science fiction (I'm thinking flying talking frogs(?) from one of the Ship Who Sang books), but she is much more serious and does a very good job on this one.