I have one and love it. I have been using it for several years in the field and I take it every time we are out scouting or hunting. It was real nice to have when the kids were younger. Allowed me to show them animals we had glasses up without them having to try and find it in the spotting scope. When the kids started competing in archery I used it to watch there shot placement from back in the crowd. Well worth the money. My biggest recommendation would be to get the attachment piece specifically for your optic. I used the adjustable one for a long time until I finally got the one made for my spotting scope. It definitely made a big enough difference to justify buying the extra piece. So much easier to just toss it on there and get it adjusted right.