My coworker is very interested in it, and we're going to buy my father in law a kit. That man has got to get off the cigs, his health is suffering from it, and nothing has worked for him so far. I let him (ok, made him..) try mine today with some RY4 and he didn't make a face, so I took that as a good sign. His wife's on my side, and that's a plus.