I read this book about 7-Feb-2009. This is the first time I've read this book. The book is copyright 2007. This note was last modified Monday, 04-May-2009 08:53:37 PDT.
This note contains spoilers for the book.
Generations ships! And, of course, society has broken down, and the hardware is breaking down. You've got a rather feudal setup resulting. It does make a nice excuse for a somewhat Vancian (Dying Earth Vance) trip through strangeness.
The fairly common background elements are well thought-out, not generic, and the story is mostly driven by character. The characters are not standard types particularly, and they're well done, making for an enjoyable story.