When I first bought this DVD I thought it was an OK workout, but after reading a few of the review here I decided to get rid of it due to issues with back pain that others have experienced after using this DVD. I had had some pilates experience before purchasing this DVD, so I have a general idea of how to do some of the exercises, but if you know nothing about pilates I could see how this workout could lead to injuries. I never really used this DVD that much to begin with since it doesn't really feel like much of a workout. I had originally bought it because it was only 20 minutes long and would fit into my busy schedule, but there are many other videos out there that have better quality workouts and include shorter and longer versions of the workout. I would recommend looking for something with Michelle Dozois if you want a pilates workout or just a general workout.