It is difficult to find good data on anything in the medical field. I tried and all I could find was limited or outdated information. You can find things like medical license suspensions or sanctions but that never seems to apply to any doctors I have used. You can try this link for ideas but it is limited and old.
https://projects.propublica.org/surgeons/Surgeons who do a lot of prostate surgeries can tell you how many they have performed and give you a general idea of their success rate for continence and ED. The rest is pretty hard to get as a good answer on as it depends on the situation when they get in there and remove it. At some point, you have to trust what the doctor tells you or not trust it. Just ask a lot of questions and you will get a good idea if the doctor seems to have the answers that you need. If not, try another urologist.