I had a radical prostatectomy 2 years and four months ago, I just got test results last week that I continue to be PSA non-detectable which, to me, means that the surgery was successful. I also had a sub-urethral sling surgery 6 weeks ago to address incontinence. It solved the problem.
It wasn't easy, but if I could go back in time and get a second chance to decide, I'd do exactly the same thing.
Good luck with your treatment.