I can relate completely; however, my surgeon was a renowned urologist/surgeon who actually taught and co-invented the procedure. He appeared on TV, etc. He treated the rich and famous - of which I am neither - and told me that many urologists were ‘schleppers’ who took a few courses and called themselves surgeons.
Five years later I am totally impotent - even with meds- sometimes dribble or more and now face a recurrence with a rising PSA. I try really hard every single day to tell myself that nothing’s guaranteed, people do the best they can, sometimes shit happens and as the old joke goes “ Senor, sometimes dee bull Wins!!”
I think all the talk about outcomes is useful, but there is a LOT of the unknown in everything you do.