Instruct: Classify Amazon reviews into positive or negative sentiment
Query: very pleased

I am really happy with this workout. As a beginner on the ball, I felt pretty challenged, but there were only a couple of moves I actually fell off the ball doing. I like the well-rounded nature of the workouts, and I was pleased that my heart rate was up there a smidge much of the time. I found the moves to be interesting to learn to do, so I didn't think the routine was boring at all. I enjoyed the instructor more than I do most workout instructors.