This book is great.... it really is great. The world is so well realised that the story flows beautifully. There is nothing here that requires willful suspension of disbelief because the author has a great grasp of society and how it may evolve. I loved the fact that we weren't on Earth and that Earth was barely mentioned.
Jane is a great female character, feisty, independent, cynical yet whimsical. Her desire to help her brother and her friend are genuine and she leaps off the page.
Devin is also a great character. He is someone who has failed and tripped badly in the past but is trying to put it far from him.
I haven't read a science fiction book that I've enjoyed this much in a long time. It's well written with excellent characters and I thoroughly, wholeheartedly recommend it.