I have been a fan of Leslie for years and have to admit I was becoming bored with her workouts. I researched for a more challenging dvds and read the reviews on Amazon.com before making my final decision. I read the ones on this dvd several times but was kind of hesitant about purchasing it. I read the reviews and hoped it was advanced and challenging like everyone was commenting. I got the dvd in and tried it out with my sister. We fell in love with it instantly. It stars you out at a faster pace and gets your heart rate up there....real quick so you can burn that stored fat. My sister and I are still working on losing weight and can tell a difference just in a few short weeks. We won't step on the scale yet but we do notice a difference. Thank you Leslie for coming out with a more challenging dvd.