I agree with the other posters about the workouts continually getting better. The essential change that I appreciate is the fun factor; her newer workouts really emphasize fun and creativity more than the earlier ones. Also, the advent of DVD technology really, really added value to her workouts, as the ability to create personalized varieties of the workouts (alone or in combination) is endless. Finally, in recent years, somewhere around Step Fit, Rhythmic Step, and the CTX Series, Cathe began using a 6 inch step instead of the 8 inch. This corresponded to a change in choreography, with the workouts emphasizing quicker, dancier moves over the more powerful ones like in PowerMax. Around the same time, she also introduced cardio kickboxing into her workouts, and has done it extremely well. Her kickboxing workouts are very popular.
With respect to strength training, her workouts have also continued to become more creative. The Body Blast series has some of the most
creative and fun strength training of all of her workouts.
Oh yeah, I forgot to mention. At the time Cathe got to Rhythmic Step, she stopped putting in lengthy, highly choreographed cool-downs. Instead, she keeps the intensity high for another 7-10 minutes, but does so by adding a "challenge", which in the case of RS is to do all three combos in order, from start to finish, 4 times through. With Step Blast, she does the same, but adds three "blasts" between each time through. Then she goes into the cool-down stretches. So, her more recent 60 minute step workouts are actually longer than her older ones.
If you can, get them all!!!
Cheers,
Sandra