Not my favorite in the series so far, really a 3.5, but still quite good. I can't tell if part of my feeling of a slower pace was because I was reading an oddly formatted ebook. It's never been a super page turner of a series, more political and social drama than action/adventure. But the changing POV in this one didn't help. I didn't really enjoy the sections about Micah, but I did see the point. And the action certainly picked up near the end! Battles will do that for a story.
My only real hesitation about this part of the series philosophically is that I don't really get the whole hybridization concept. Why would people who don't need it for medical purposes what to do it? I don't feel like the motivations are clearly presented, it's just sort of presented as a given. There aren't any clear physical advantages presented. It is mentioned that the hybrids are supposed to live longer, which certainly would be something many humans would go for, but that isn't shown as a motivation at this point. I can see that some few fanatics would want to try it, or just some of the people who love to try something new and risky or to be outside societal norms, but it's being presented as a more normal choice and I can't quite see choosing to change one's entire genetic structure and race so easily.
As for the rest of the story, I enjoyed the subplots about Jani and her various men. I wish Pierce was a romantic lead and not just a best buddy, but maybe he'll find a gal in the last book. I'm lukewarm at best about John, I don't yet see his appeal (except in the brains department, but that doesn't seem to be Jani's primary interest). I'm still fascinated by Lucien and very curious as to how his story will resolve. I'm betting that hybridization will cure his problems with his augmentation and predisposition to emotional numbness, but we'll see!
The primary and overwhelming story of human-alien cultural clash has reached a major turning point in this book. The primary cultures of both worlds are at a seeming impasse, but the outcast alien culture is on an upswing. This book is full of rebels, human and alien, and there are a lot of interesting questions about what makes rebellion justified, what means are appropriate, and what happens when rebels become part of the system. I look forward to seeing how the politic situation advances in the last book.