Instruct: Classify Amazon reviews into positive or negative sentiment
Query: CCDP Insight - Outstanding Value!

Allow me to say that this book does an excellent job in covering the CID Course Material. The author, Mr. Birkner has done an excellent job of adding value to the material and "correcting" all the problems found in the course. I took Cisco's Course a year a go and I bought this book in order refresh myself for the CCNP exam. It is an outstanding value because I can't afford to sit the actual CID course. I actually liked the complete explanations on many of the subjects, they reinforced the design concepts. It is quite clear that Mr. Birkner did an excellent job with this book.I would like to take a minute to comment on the previous review. This individual did use this book and he did pass the test however he did not score like he expected so he attacked every resource he used from this book to BFQ. Another insight into this person is that using 2500's with modems is not an even an objective for the CCNP.... Don't let sour grapes stop you from achieving your CCDP!