I like this workout. Being a beginner and over 50, I started with Get MovingPrevention Fitness Systems - Get Moving, then after about a week started doing this one 1-2x a week for a little more challenge. At first it doesn't seem like a lot of work, but about 2/3 of the way through the sweat is dripping off me. I find the toning segments for the lower body to be a good challenge. My husband does this with me sometimes and the sports-type moves keep him interested. I agree with some other reviewers that there could be more stretching, but this is short enough that I have time to do the first 2 segments of Perfect in 10 StretchPerfect in Ten: Stretch - 10-minute workoutsafterwards. I can see where advanced exercisers might be disappointed, but this is good for my level and I'm sure I'll continue to use this even when I reach the intermediate level.