The plot, world, and characters were built very well. I was hoping for a more satisfying ending. It very clearly leads into the next book, which I have mixed thoughts on. I don’t know if it would have been natural to tie up the story at the end, but it felt like I just read a teaser book. I think I’m just used to books with solid endings and then a hint to the next book though. 
Bardugo is a great author and there are so many details to the book and the plan the crew follows to complete their “quest.” Would recommend to a friend.