This one will always be high on my to-do list. I love that no equipment is needed and the drills are challenging yet fun! When I watch infomercials and see other instructors doing workouts similar to Cathe's what they lack is the fun-factor Cathe brings to her DVDs. Who gets excited doing air jacks and tuck jumps? Not me, but when I'm in front of the TV with Cathe and her crew can't help but smile through them!