I have to admit that I have not read the other books in this series, so I am not sure how that would change my rating, but I did enjoy the book more than much modern sci fi. The Science seemed well thought out, and the world itself was well created but the plot was fairly thin and the ending fizzled.

I wanted to like the characters but they would have been more believable had the author stopped telling us what they were like and just showed us.

Some of the slang and a lot of the political and international developments that Flynn projects make the book seem dated and a bit silly. But the story was satisfying and the characters engaging.

A powerful conclusion to a very good series. I just wish Flynn told us a bit more about the future that comes after this book or wrote the fifth book.