Instruct: Classify Amazon reviews into positive or negative sentiment
Query: VERY unrealistic ... gets annoying toward the end...

I'm glad I heard this book simply because it was such a popular book. However, I didn't enjoy it very much. The plot, while moderately amusing, was NOT believable at all. Everything came too easy for them. They never mulled anything over. There were far too many "aha!" moments and that really annoyed me. I like the character Langdon a lot but the others were pretty annoying. By the last CD of this set, I was very tired of the whole plot, all the characters and was ready for it to be OVER. Mildly entertaining but not anything I would EVER listen to a second time.