well here is the update I have from a contact who got an rx for the Cranial stimulator it was for head/face pain that comes with anesthesia dolorosa a type of Trigeminal neuralgia. IT WAS NOT for depression .
They paid about 1000$ for the "unit" or cranial stimulator and after trying it for a bit over 2 weeks sadly there was no change in the degree or amount of pain my friend lives with every day.
She contacted the company and sent it back for refund.

I still know of 2 others who are going to try it ,
one for depression and the other for pain.
I will update when info comes along again.

PEACE
BMW