I did it yesterday and was pleasantly surprised. I expected the cardio blasts to be killers and they weren't. The music was good. The only thing that bothers me is the constant changing of equipment and fast weight changes. Cathe goes very quickly between exercises on this one. But is was only my first time doing it, so maybe once I know it better, I can get my stuff more organized and be more speedy.
I found it helpful to do 10 10 10 beforehand because I am one of those people who finds it very difficult to do the Boot Camp blasts where you go from standing to aerobic or anaerobic threshold very quickly. I thought it might be less stressful on the body if my heart rate was already elevated to begin with and if did help.
Basically this workout is Boot Camp II with a few high step its thrown in. So, all those people who wanted a Boot Camp II: you got it!
Clare