I missed a lot of world building, I couldn't get an idea of what Thisby looks like. Also, I felt that a lot of side characters could have been cut out, I kept forgetting who some people were. But, I really enjoyed the main characters and the atmosphere. Also, I really loved the ending. 
 I knew before going into the story that it is not just about the race itself, but more about the weeks leading up to the race, getting to know the characters and their culture. That gave me a realistic expectation of the plot. I think if you go into it thinking that it is all action and racing that you will be disappointed.