Instruct: Classify Amazon reviews into positive or negative sentiment
Query: laid back sci fi thriller-thinker

This book has interesting and quirky characters, insightful reflections about our times, intriguing possibilities about what the future may hold and how the powers-that-be could react in the face of impending scientific developments, but most of all it's a well told story. I always wanted to know what would happen next, and I wasn't disappointed.