I studied up on those guys and he's supposed to be very good. He started the robotic surgery center at Emory 15 years ago, and is now the director.
My RO said he, and the others there, are excellent surgeons. A lot of them were trained at John Hopkins, UUCLA, etc.
www.emoryhealthcare.org/urology/multidisciplinary-team/pattaras-john.html