Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not Crichton's best effort

After reading most of Crichton's books, it gets hard not to compare the latest effort against the previous books. With such books as 'Jurassic Park', 'The Andromeda Strain', and 'Disclosure' it makes it difficult to always hit a home run.This book takes on the dangers of dealing with nano-technology. Crichton is such a good writer that he grab the reader and keep them captivated sometimes in spite of the subject. I think that is a great skill and still enjoyed the book.The story did lose me a little regarding the mass of nanobots and their life like abilities. It is hard to believe some of the books imagery. This may be partly due to the limited knowledge regarding nano-technology.If you a Crichton fan or some looking for an enjoyable easy read, then this book is good. However, if you're looking for Crichton's next great novel, I didn't think this book stood up with the rest.