I mentioned Isagenix briefly in the past; I keep using it and those who tried are still using it.
Finally took the time to write down a proper information page about it here.
In short:
Benefit #1: Improved vitality, stamina and productivity
Benefit #2: Reduced costs
Benefit #3: Protection from food crisis
Benefit #4: Supports your exercise lifestyle
Benefit #5: Simplifies your meals and saves time