It's rare that a lengthy series can maintain an even consistency in quality, especially when it comes to plotting. With the Riyria Revelations it's clear that the author had a plan at the start and stuck to it. In a world were many series fall short of this (be they books or tv shows), this is nothing but commendable. 
 When I began reading this I feared that the ending would be a cheap cop-out and in a minor way it is. The whole 'a simple act overturns a major power' is that cheap way, but it was handled very well here, neatly wrapping all open plot lines into an 'Aha!' moment. 
 Recommended to read for anyone who enjoys fantasy.