I did what research I could, and I was satisfied that it's a perfectly fine company selling products and services that people want. MLM is a valid mechanism for rapid deployment of an advertisement. Many people confuse it with pyramid, which is akin to Ponzi.
We decided not to do it because we all have full-time jobs, some of us more than full-time. I'm not likely to get involved in Isagenix. On the other hand, I'm probably going to borrow some of their MLM strategy to promote my business once I get the networking part of it working reliably.
Michael Nystrom's fists can punch through FUD.