Anyone been to Mayo or Cleveland Clinic...or something similar??

I made an appt. to go to the Cleveland Clinic (they have on here is South Florida) ans I am wondering what to expect. I am truly hoping they have something that can help my back problems, I can deal with the pain any more and I want to get off all these darn meds that hardly work 1/2 the time anyway. This is like my last hope...I have been to so many doc's who all tell me the same thing....its not a surgical thing and theres nothing we can do for you...BTW its gonna get worse. I digress, my question is..."has anyone been to the Mayo or Cleveland Clinic or any place like them to get help?" I want to know what to expect and if they were able to do things your doctor wasn't able to do. Thanks all!!!!  ~Carina   "Any society that would give up a little liberty to gain a little security will deserve neither and lose both." -Benjamin Franklin