The Way of Shadows is a good book. As far as dark fantasy goes, it isn't my favorite, but it is a good book. I really liked the ending, and felt it justified alot of the trials and tribulations the characters go through over the course of the novel. The plot is really intricate, and it's damn well written. 
 For anyone who has read Among Thieves by Douglas Hulick, or The Warded Man by Peter V. Brett, then this is definitely worth a look. I'm eager to read the next part in the series!