Karin - I love this DVD, but I think it depends on what you want. All three of these workouts are VERY high impact, and very challenging. I personally think they are some of her tougher workouts. I do these when I want a challenge and a major calorie burner.
I like them all - I probably use 3 most often. I think the Terminator DVD is a better buy if you're looking for one. I do those a lot more often - they're not as painful. :+