Some spoiler alerts, if that's alright. Nothing too grand, just commenting on the book is all. And explaining the reasoning behind my ratings. I usually don't rate books this low. 
 The level of violence was alright for me. Some of it was a bit off *coughchoppingofffamilymembersheadscough* but it was fine by me. The humour was great. I think the crows were my favourite characters. They made me laugh! Also, I didn't mind the king [besides that certain problem which involves his children's heads]. Sure some parts were rather...odd, but nothing too bad. My brother though it was "interesting." The parts I told him anyways. 
 Everything went by so terribly fast. It was probably just me, but I'm used to reading books with more depth, feelings, characterization, description, etc, etc. This was the main reason behind my rating. It didn't have enough. I felt like it was lacking in so many areas. But alas, that was the writers style and I shall not hold it against him. 
 I love twists on fairy-tales or any retellings. In that sense, the book did not disappoint. Besides the bit o' violence, this book felt like it were for younger audiences. But it a good quick read for anyone!