I've been happy with my Leupold GX-1 for many years now. Only thing that could be improved as far as I'm concerned, is the targetting. I sometimes have a hard time finding the flag if it's hanging straight down and I'm quite a ways from the green. I've read about lock-on technology or something, but not sure if that require the flag to be reflective, or if it works with any flag. If I got a new rangefinder today, that would be one of my top priorities.