As Walker28 asked, what are your current stats and what are you betting on?
As for recomendations, the only way to find out if it will fly, is to jump off that ledge and find out really.
You do need some sort of trust of course, and not charging for the first little bit will help I am sure. It will give people that you do get tehre a chance to try it and see wha happens. If they do well and see a return, I am sure they will be back.