Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great workout video

This is one of my favorite workouts ever. It is a full body workout in well under 30 minutes, and when that's all the time you have, this workout is the very best. There are 3 workouts in the shredded series, with this one being the easiest. Personally, I don't care for the 2nd and 3rd, so I just do this one. I also like to mix up my workouts with some of Jillian's other DVDs.