Problem is, both workouts require a degree of space. They cannot be performed in hotel rooms at all.
They are both excellent workouts and I disagree that Circuit Max can be used for a lighter Cathe day. Circuit Max is one of the toughest Cathe DVDs. I use it as my own personal standard of fitness. If I can do CM and I'm still standing and high-fiving at the end of it, then I know I am in good shape. It has a lot of variety in the cardio, hi/lo, step kickbox and regular step and it just keeps coming. It has an interval feel to it. I prefer to sub all the upper body compound work and replace it with barbell and dumbell lower body work. So for the 2 mins I will do instead squats, plie squats, static lunges, lunges onto and off the back of the step, etc. At the end of all this, my lower body is worked like nothing else. It is the true meaning of "kicking your butt" and I love it.
I don't do CK so much, but Cathe is energetic and inspiring, the drills are fun and will work you hard and can be used as add ons to any other Cathe kickbox DVD if you are doing your own combos.
I think they are both valuable additions to a fitness collection.
Clare