Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I can't believe this won a Hugo

With a mysterious ringworld, this book had a lot of potential for action and intrigue. Instead, four characters drive their flycycles across an endless plain with nothing too exciting happening along the way. I just didn't care about the weak premise or characters. One of the main threads of the story having to do with luck is novel but ultimately stupid.This book was a huge letdown for me. I was going to put it down halfway through but thought that it's a revered book... maybe it's just slow to build and will pick up as details about the ringworld are revealed. I wish I had stopped.I am not tempted in the least to read the sequels, even though they may explain more about the ringworld; I no longer care.