Only set i've ever had was the Bushnell Yardage pro a good few years back. They were good in terms of build quality, ranging accuracy and glass clarity. I tried them against my Leica RF and they always gave the same reading.

They have since stopped making them and changed to a leaner version called the Fusion. Slightly higher magnification and a little less bulky than the yardage pro. I can only guess that they would be as good having never used the new version.

One thing i'll advise and it can be applied to rangefinders as well as RF Binoculars. Don't be lured in by the 1,500yd, 2,000+ abilities. They may very well be able to reach out that far, but you need to read the fine print. It'll only work on these distances on highly reflective surfaces. The ranging ability of them on less reflective items drops considerably. That is, assuming, you can hold a pair of bins steady enough to hit a small target 1500 - 200 yards away. Seen lads try this and claim the RF wasn't working. The books for these devices even say to use a steady platform from which to range items over 1000 yards.