Have any of you heard of the VNS for depression?

I am in the process of trying to get it. My Dr. and a lady that works for the company is going to start fighting to get it ok'd by my insurance. I know the fight will be long. I'm looking at most likely a year just for the fight to get it. Then the implant is put in and it takes 8 weeks to get better from the surgery and then it has to be turned on by a wand and then it takes up to 6 months to start seeing any difference, maybe longer.

I just wanted to know if anyone has had this put in or knows of anyone that has had it done.

Thanks,
Ada