I wanted to shock my body with some new type of exercise (I run and bike regularly.) so I received a reformer as a gift from my husband. The instructional video for the Pilates exercises was extremely easy so I thought this one would provide the progressive levels that I wanted.Although I have had to modify several exercises for my machine, I am happy to report that I find the workout challenging yet enjoyable. The instructions are simple to follow although it does take time to flow from one exercise to another without pausing the remote. I don't see being able to complete all the exercises in the advanced workout for some time which is wonderful since so few exercise DVD's are challenging.I'm looking forward to seeing the changes in my body and, one day, making it to the Super Advanced session!