Is this a good machine?

Portable RIFE machine, used in alternative health care, more and more in mainstream health care. Generates frequencies within the human body that promote rapid healing of disease and injury. Manufactured by Nature Tronics, model D. Complete and in good working order. Cash, please. Thank you.
 

Or this one:

For info and retail price see http://www.wizgear.com/product/ENER1/Royal-Rife-Frequency-Generator.html. Used, in good condition.