It's good. Sequels seem to have the regular problem of not being "as good" as their predecessors, but this did not disappoint. The action was constant, the plot was appropriately twisted, and by the end I had tears in my eyes like the sap that I am. There's room for a continuation of the story -- if that's what Bardugo wants -- and believe me I wouldn't mind. The whole duology is action-packed and exciting, and I recommend it to any fantasy lover.