Looking for feedback on Motor Cortex Surgery for TN Pain?

[Falkenhagen]

I was diagnosed with TN in 2010 after a jaw surgery for Sleep Apnea went horribly wrong.  I have been suffering since the surgery trying to find anything to help.  I have tried almost all of the anti seizure drugs listed as well as the remainder of the nerve drugs with little to no relief.  In addition, I have done Botox and Cyber knife on the Trigeminal Nerve and Acupuncture.  I currently have a Peripheral Nerve Stimulator in my left side of face.  The Stimulator provided some relief early on, but that is no longer the case.  I am currently scheduled to have Motor Cortex Stimulator surgery at the end of this month.  

My question is if you have had MCS surgery could you share your results and complications from the surgery.  

Since I am in this mess due to a botched surgery the MCS being as invasive as it seems scares me and I don't know if I should go through with it.  Any feedback would be appreciated.