We haven't yet but probably will within the next 2 months. We just started our biomedical protocol.

Not sure about the cost yet but have read that you might not see real results until after 20 to 40 treatment sessions. Be sure to consult with your neurologist first - I also read that it has been suspected that this therapy could trigger seizures. We've got an appointment coming up in early Feb to look into this and all other BioMedical tests and treatments.
If it is expensive, yet proves to be effective, then I am wondering if scuba diving would provide the same effectiveness.