I've used it. I'm a decent golfer, 8-10 handicap, but I could never score based on my abilities. I never learned it, etc. The system helped me with club selection, aim points, etc. and has helped me avoid the big numbers that would plague my rounds. My scores are improving 100%. Some people inherently know how to score and good for them, I didn't and this has helped my mental approach to the game versus just standing up there with no plan. I think Scott is a bit annoying, doesn't shut up, but the system can help. Hell it got Stewart Cink 2 wins when he had been forgotten about.