It all depends on how much time you have on your hands. Most of us work a full time job and cannot devote a lot of hours to the business like we want to at the beginning. I think its best to use both free and paid advertising. I do a little bit of both following the training the company provides us. The paid advertising has been very productive for me building my team and residual income, but if you have a part time job and time you can certainly do well with free advertising.