Everyone has a DVD loaded with testimonials. Is this person a doctor or someone with a mailorder degree? I'd like to know this person's name and what they're promising you before I say anything. There are a lot of other 'balancing' techniques like EFT that are free. I would think on this carefully. If you need a few months to save $600, I don't think it's decision you should make lightly. Ask for references. Ask very detailed questions.