Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A good short workout

I am a true fan of the FIRM and especially of Kelsie Daniels, the lead talent in this exercise tape. I am not sure why, but when I first tried the workout, I didn't think much of it. However, after using it a few times, it has become one of my favorites. While it is true that it is under 45 minutes--probably closer to 40, for the time that you are exercising, you are working hard. It pushes you to give that extra little bit. Kelsie's cueing is good and I like the music.