There are only anecdotal reports to go on - which are virtually useless. Distant healing has no plausible mechanism and has never been shown in robust clinical trials to be any more effective than a placebo. I can tell you now that it is pure quackery and the only reason he offers it free is for self promotion purposes. There is pretty much zero effort required on his part. Better you don't get involved in this scam, especially if you have a real medical condition that requires real medical treatment.