I do this workout very regularly and think it's great that it's so exhausting, of course you have his own bastard overcome the endure to the end and not to give up in the middle but that's a matter of will. So I think a fitness DVD and do not necessarily beautiful music and scenery are made and find it totally ridiculous that here are some of opinion, I think the sport is at the forefront and to be most effective. It's a pretty strenuous exercise but after your accomplished 55min, I'm super proud of myself to have done it.