This set contains 4 DVD/video's. Foundation teaches you the proper execution of the techniques, that differs slightly from earlier Billy Blanks video's. Energy does the same but in a slightly higher tempo. The two remaining DVD's are Power and Strength (my personal favourite). "Capture The Power is the best I know" Billy Blanks says in the note that comes with the DVD's, but the experienced Tae-bo warrior will find something wonting here. Billy talks a lot between sets, does the sets slow first many times, the fast sets don't last very long and he makes use of yoga like warm-up techniques. All these factors deduce from the sweatiness which is still my main criteria for a good workout. The choreography of these workouts is pretty good, I would give it an 8 out of ten. And for overall sweatiness a 7 out of 10. Those experienced with Tae-bo will not find these tapes too challenging. For people that want to get into tae-bo and are looking for 45 minute workouts, this is the thing to buy. Advanced Tae-bo practitioners should buy either the original Tae-bo tapes or the Get Ripped series, that are in my opinion still the best in the field.