I loved the world building in this book. It was really vivid and fascinating and yet nice and creepy at the same time. I could really picture what life was like on this spaceship. 
 The characters themselves seemed weak to me, with the exception of Amy. I wasn't at all impressed with Elder who seemed like a little kid at first. While he did mature over time he just wasn't appealing to me. 
 The plot was pretty good, but a tad predictable. I managed to figure out most of the mystery in it, but oh well, I can forgive that. 
 No real deep thoughts about this book to be found in this particular review :P.