Feel lucky? Didn't stop for me, and my cancer contained and removed entirely. The ED was easily solved with little pills. That was the least of my problems with the op.
I also had problems with the join in the utrethra growing and obstructing the passage. Had to go back for further surgery to remedy that and had to use in out catheter to keep it open.
Other problems like having that <deleted> catheter for a while both times.
Since my op there are alternatives that I'd have rather used. If I could go back I'd use hormones instead, but never ever radical surgery. Potential problems with every option though.