Hi Rum Queen,
Another member, LadyJane, has been extremely happy with the Cleveland Clinic, and Dr. Thomas Rice in particular. She has nothing but great things to say about the entire clinic, and the Dr. Rice and his staff.
Good luck finding the right place for your surgery. You are wise to look for the absolute best, most experienced Nissen surgery, as a skilled surgeon is a huge part of the surgery's likelihood of success.