This is a great DVD because it offers you the ability to customize your workout depending on your fitness level. If you are not familiar with the different exercises, it may be difficult to do them all the first time through. The first time through the routines I had to sit back and watch a few times because I didn't always understand how to do the excercises. I haven't made it to the level 3 workouts on the DVD yet, but the warmup cool down, along with levels 1 and 2 are all very good. I half expected Jillian to yell at me like she seems to on the TV show, but she was actually motivating and seemed to understand that not everyone is able to to exercise at the same intensity that they do on the tape. Excercise modifications were shown in the level 1 segement, so if anything becomes too strenuous, you can simply revert to the modified excercises to complete the segments. I was in ALOT of pain the first couple of runs through the workouts, but as I continue to do them everyday they are starting to get a bit easier. While I haven't lost any weight yet, I can already see the physical changes in my body. Make sure you have some hand weights as you will need them for some of the exercises.