Experiences of going to Mayo Arizona for migraine

Hi y'all!!
I just got an appt with Mayo Clinic Arizona's neurology department. I have chronic intractable/refractory migraines- i have had one everyday for 2-3 years.

I have tried many meds, botox, nerve blocks, trigger points, etc all with no help.

I was wondering if there is anyone here with a similar case who would be willing to share what it was like going to Mayo Arizona for this condition.

Thanks so much!!