I finally received the Leupold RX-650 today, it was missing the lanyard but Leupold says they will send one free. My first impression is that it is so small and light. I will have to practice aiming it at things very far away because that could be a challenge--like a short barreled pistol on a long shot. It works like it should, push the button and it will give you a distance. I would like a little more eye relief, the box says it is 16mm. When you wear glasses you could use a little more room. It is simple, just line of sight, no temp, wind speed, etc. to confuse me and it was reasonably priced. I have not used one before so I can't give a comparison.