Keep in mind I did not go to see the naturopath with my mom, so I cannot tell you why this particular machine was recommended. Also, this is the same machine that the naturopath uses for her patients. She has a machine that she allows her patients to use for free, as part of their treatment. My parents decided to buy a machine because my mom needed to "beam" daily and with work and commute, was not able to get the office before it closed. My parents bought one machine off of this website, and then my dad found another one on ebay, used, for about $900.