Oh man, I had so much fun reading this. Fair warning, though... The exposition could be clunky at times and I agree with Q that the ending brought it down a few notches. But...the world-building and the clothes and the Grisha magic were all supreme. The book smacks of Tsarist Russia while still holding true to its fantasy setting. I'm very, very excited for what's coming next in this series. 
 (Bonus: Leigh Bardugo will be at the Austin Teen Book Festival in a month. Score!)