One Goryhell of a thrill ride!! 
 Its very interesting how Pierce has managed to make a story set on Mars feel so Primal... An extremely thought provoking start to a trilogy, where one sometimes doubts Darrow's brutal decisions/motives. 
 Keeps you guessing until the end, a very addictive read, looking forward to reading book 2... Which I understand from reviews is somehow an improvement. 
 I find this hard to believe, a resounding 5 stars!