Of all the books I've read this year, this was undoubtedly the best. I have rarely felt so much involved with the characters described here. Each is a fully-rounded, utterly believable and very real person. The book is very funny in parts and yet also very 'gritty' - occasionally frightening and violent. As in life, we are frequently presented with a new character whose real face is not seen in full and, once revealed, the whole picture presents a big surprise.
I felt that this novel defied genre. It is a thriller, a romance and a dystopic picture of the grim north all at the same time - exactly as the finest literature should be.
The setting of Hull, to my mind, was secondary. The book could have been set in any place - although the wonderful descriptions of Hull Fair gave the book an atmospheric thrill which could be lacking if the setting was different.
I strongly recommend that you read it and enjoy it. This book will stay in my mind for years.