I read the book and felt it was nothing but pseudoscience (and I'm a big fan of biomed in general). IMHO there are a lot of other treatments that you could try for the same amount of $$$ that have better research support.
From everything I've read, I don't think that the cost is justified for such an unproven treatment. The fact that they seem to be unwilling to let their data be peer reviewed is a big red flag. If it works so well, why not let someone outside their organization help them prove it?
Thank you for posting these answers. Brain balance opened here & I was curious about it. I'm glad to have this resource to see what others have experienced. I'm glad I searched here first