Many many people have had the SCS implanted. You might post in the spinal disorders forum.
I had the SCS implanted years ago, as I had horrible sciatica & PN. It was hoped that the SCS would help it, as like you my pain was usually at about a 9.

Medications wouldn't even touch the pain. They implanted the device and I had it for 6 months. It didn't seem to help and iin fact seemed to irritate the sciatic nerve even more. It was reprogrammed many times to try to help me, but nothing worked.
Then to make matters worse, the fact that I was thin was a downer cause the " generator" started to work itself OUT of me. The corners of it began to poke thru me! UGH. So they had to take the whole thing out of me, which wasn't fun cause of scar tissue around the generator AND the leads. I still have a painful spot in my mid back due to scar tissue.
So - I was hopeful, but it was not to be. Darn it. LOL I had hoped for the Morphine Pump, but the fact that it's even bigger than the SCS ruled that out. So I'm just on stronger medications now -- and i found a new GP who worked very hard to find a combo of meds that ACTUALLY WORK! No other doc was willing to work as hard as this GP. Finally after 26 years, I'm "comfortable."
I'm so glad YOUR stimulator has helped you! That's wonderful to hear, and I'm even happier to hear that your pain levels are SO LOW!!! Thank God! You suffered long enough! Take care, and please keep us posted on how you are doing, ok? God bless. Hugs, Lee