Instruct: Classify Amazon reviews into positive or negative sentiment
Query: donating this to the library

As an avid lover of Pilates I was disappointed in the Stability Ball Challenge workout. I decided to use my Bally Fitness Center membership and get up early for the 5:30 a.m. class, using 2-1/2 pound ankle weights to make the workout more challenging. Because of that, I won't watch this DVD again. Waste of money. Thank you!