First, I purchased this item without the Sculpt Express. I incorporate this wokout with the Bootcamp series. Instead of doing the lower body dvd in the bb camp series, I use the amped rockin'buns and abs because they are much more fun and I love the whole atmosphere on that dvd and the music is funky. I get quick results on my thighs and buns. I do not use the amplifier bar with this workout because the darn thing keeps on unlocking and I'm concerned that if I execute a move and it unlocks while I'm doing it ,I will get a serious injury. NOT HAPPY WITH THE AMPLIFIER BAR! - there must be a manufacturing fault with them because a lot of customers are complaining that they unlock all the time which interrupts the workout. But overall a fantastic workout, Thanks Billy and the team