Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing

I thought this book would of been a good investment because I wanted to try a new publisher to the Cisco World. This book was disappointing, the authors did not seem to have any writing experience and the organization of this book was confusing. Oh sure it had errors, all books do but they seemed a bit to obvious so that was disappointing because basic concepts should be second nature by all CCIE candidates at this point. To bad the authors are not CCIE's or they would of know this.