I have a collection of exercise dvd's including Denise Austin and Billy Blanks. I was most impressed by the flexibility of this dvd for the user. You can utilize either the pre-designed, pre-assigned day of the week workouts based on your body shape or you can design your own workout with the customizable menu and use it as you wish. What a wonderful concept!! The exercises are challenging and the instructors are motivating without being annoying. The dvd fitness industry should take notice of this "customizable approach" to exercise; because, as we all know, the same boring exercise routine gets old very quickly after only a few viewings by the user. Thanks to the amazing creators of Women's Health for a great dvd. And, please keep them coming.