Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not his best...

I consider myself a huge O'Brien fan. He is truly one of the most gifted story-tellers alive today. The Nuclear Age, however, failed miserably to live up to the excellent standards set by his other works. That said, it is by no means a bad book- just not the most captivating and engaging read. If you plan to read O'Brien's work, DO NOT START with The Nuclear Age. It doesn't do his talent justice.