NEVER go for the Rezum procedure. It only works for a few short years... I really can't believe they are still doing this procedure. I'm now considering the Urolift procedure.
With Urolift and Rezum you will be fully awake. The pain you will experience will eliminate any notion of being erect. Both are temporary or bridge procedures. You will need an additional procedure for your BPH in a few years. Both are terrible procedures. Ask me how I know....
Rezum is a SCAM. Mine lasted 7 months after treatment, then everything locked up worse than before the procedure. One of the urologists I talked to after my failure, told me that she stopped doing Rezum because she experienced too many treatment failures.