I've been using this video along with the companion "Secrets of a Great Body-Volume 1-Upper Body", and have definitely seen results. The exercises are thoroughly previewed and the video is short enough to keep from getting monotonous, but long enough to get a good workout. Great for beginner through intermediate. I'm at intermediate stage now, when I progress, I expect to use weights, as she recommends, for some of the exercises. I like Kathy Smith's attitude and encouragement. The video is filmed in a large empty room which is initially boring, but that lets you concentrate on the workout. I've seen great results after six weeks. I have a problem with a tendon and hoped building the muscles in that area would help, and it has. Kathy Smith's style is pleasant, not annoying, and she is quite an athlete. I'm now convinced that the right workout videos can keep me motivated to improve my fitness level. For aerobics, I use Kathy Smith's Functionally Fit Workout video, which is excellent too.