Instruct: Classify a given Amazon review as either positive or negative.
Query: Good exercises, not long enough

I really liked the exercises that were introduced in this video. It is split into 20 minutes of yoga and 20 minutes of pilates. The yoga is pretty basic but the pilates workout is fairly challenging and seems more effective. The workouts are a little short but you can repeat parts of the workout you like because it is a DVD. All together it is a very good buy. The short (roughly 7 minute) section of pilates focusing on the abs is very good.