Instruct: Classify Amazon reviews into positive or negative sentiment
Query: There needs to be more.

I attend a kick boxing class at my college gym so I bought the tapes to keep up with it over spring break. While the tape is very helpful at explaining techniques, it does not provide a workout that will make you sweat enough. The tape is very short, the music is terrible, and the pace needs to be picked up. For forty dollars, I expected more.