There is always the risk of unaccountable, non-integrous  people out there that give Network Marketing a bad name.  I suggest that you do your research from credible sites (not blogs, even mine), such as better business bureau and other reputable resources and make a properly educated decision before going into business with someone.  Network Marketing is a people business and while dealing with people can be an awesome thing, it can also be a disaster if working with sketchy people.