I never really believed the benefits until I just recently went only 2 days of edging without ejaculating. I did have a DO on day 1, then on day 2 I got to the gym and had the most energy I had in years at the gym. I usually hate during cardio, but I just went away with it having fun. Then, later on day 2 I had sex with the wife and had raging EQ the entire time, and blew the biggest orgasm I can remember with rope after rope. After I came I felt paralyzed and couldn't move for like 10 minutes.
I can't even imagine how insane longer periods of time of edging and no ejaculating feel. I am looking forward to finding out.