Successful ECV (breeched baby)

FTM 36 weeks today and scheduled to go in next Monday to have the baby turned. How many people have had a successful ECV? Meeting with doc and anesthesiologist on Friday so they can walk me through the process. Apparently they do epidurals so that if water breaks or baby goes into distress they can do emergency c section and I'm prepped. How many people do this actually happen to? Just curious and I am nervous. I want baby to come, but once he is ready. I was told today that I am measuring 39 weeks and that I have a butt load of fluid in my stomach.