This is one of my favorite workouts. After the warm-up, there is about 25 minutes of step, then a short hi-lo circuit (4 cycles of 5 minutes hi-lo with 5 minutes of weights), then chest and triceps, then abs and stretch. It's never boring because we are constantly moving to do something else and the music rocks (it's all familiar 80's music, which is my favorite). I find each section a bit easier overall than most of Cathe's other workouts (the step portion is one of her easier step workouts, the weights are fairly light, etc), but when it's all together (70 minutes total), it's a good workout.
All around a great fun workout.