Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Not for beginners

I was intrigued by this video, since I have a dance background and have taken a couple ballet courses in college. However, I found the frequent ballet terms difficult to follow and the instructions lacking. Unlike "normal" exercise tapes, there was little introduction to movements and injury prevention (especially when working on back muscles). The tape was a nice change from my other tapes, and I did feel the workout, but I would only recommend this to seasoned dancers and exercise enthusiasts.