My thoughts... I bought some DVDs on Ebay for 36 dollars shipped from China. Knockoffs for sure, but they look and sound great. Anyway, it is tough and I was sore for the first week. I started late March and have dropped 18 pounds. Now to be fair, I was and still am fat (269 to start) so the pounds did fall off easily but it was and still is a tough workout. I did start to eat a little better as well. Anyway, the gist of what I am saying is do not be turned off by the intensity of the whole program and even fat guys can do it but with modifications (I can't do the one armed pushups or clappers without being on my knees). It is a time commitment however so keep that in mind. Also, I couldn't do the Yoga as I am not flexible enough so I do 45 minutes on our elliptical instead.