IT'S AMAZING! 
I think it's almost as good as graceling. It's beautiful to be able to encounter some of the same characters you loved on the first book years later and also get to know them once again. 
It's a very fast pased book and pretty easy to read, i honestly would recomend it if you are in a readers block. 
I would recomend to check out the trigger warnings because there are some really horrific and graphic scenes. 
It was also refreshing to see some diversity in the cast, without it being the center of their character development.