I have found this product very helpful in my golf game so far. Besides the basics; like giving the yardage to the green, I am most impressed with the additional features the onpar provides. The club averages feature is by far my favorite. I have used it enough times now that my club averages stored are very accutate and help me in my decistion on what club to use for specific yardages. I also like the ability to move the pin position on the green to the exact location and the yardage changes to that new location from where I am standing. The league course I usually play has very large greens so this feature makes a big difference in getting the exact yardage to the pin. It fits in my pocket so I can keep it on me when I play and I have found the yardages to be the exact same as the posted yardages on the courses I have played. The screen is super easy to read in the bright sun and my golf partners are envious of this unit and want one for themselves. So far this product has met up to all it claims to do so I am pleased with my purchase.