I have experience with Mayo clinic. I went there for DX. It was an intense experience, as they do have you see a number of specialists, one right after the other. If you want a DX, that is indeed a good place to go. In my case they got to the bottom of the problem. I was there for about 4 days. The only thing I didn't like was the last day when they gave me the results. I was still in the hospital gown. I would have rather gotten dressed and felt more together to receive the not so good information. I have an auto immune problem and was referred to Columbia university medical center for years of a trial study.
I wish you all the best in going to Mayo clinic. Expect alot of tests. They were nice to me however, and I am sure they will be for you too. ginnie