It sure has length for an "epic" fantasy - a genre which I haven't been able to wrap my head around, but it severely lacks in depth. Its a decent story with characters being similar to few of Sanderson's characters from his other books. At times the story feels totally superficial as many elements that we have read in the past are combined and presented on a new platter. 
 The plot is quite thin and moves very, very slow. World building progresses and gets intricate. Loads of conversations are carried about the rights and wrongs of the world. But none of these add anything to the plot. This is where I lost interest.