Not sure what it Cathe has deemed it as, but personally, I use MM as an endurance workout, although it does have less reps than PH, or ME and the weights tend to be heavier than what you'd use in a strength workout.
However, for me, when I am lifting for strength, I will only do one ( or two at most) bodyparts/day. That way I can totally exhaust those muscles with the heaviest weight as possible. If I tried to lift that way doing a full body workout, my concentration just wouldn't be that good for every one of those bodyparts.
Also, when lifting heavy, you end up using what I call the "supporting cast" of muscles. For example, chest work incorporates some shoulder work.. if I lifted really really heavy for chest that day, my shoulders would not be up to snuff for a quality shoulder workout as that they would already be fatigued somewhat from the chest workout.)
By the way, if you were wondering whether to get it, definitely do!! It is an excellent workout, very fun, and the time goes by quickly!! She has alot of variety in this one.
The most comparable workout to this one ( IMHO) is Maximum Intensity Weight workout. However, this one to me seems way more fun!!
Take care, Lynn M.