Experience with Sigsaur 3k and 6ks both in 10x42 for ~2 seasons on each. Even tho rf binos are a bit heavy, they are areat upgrade over the individual tools in both archery and longgun hunting scenarios. Unless my wife is hunting with me, i always grab the RF pair and other harness has been relegated to a backup. Sigs customer service has been great too! I had a problem with the 3k eye cup after the 2nd year, when I sent them in for repairs they just sent me back a brand new 6k pair instead!
Where some RF binos suffer is the lens coatings to make numbers more legible but can make low light performance poor compared to non-rf. Sig may be one of the worst offenders in this category and i've seen some green, blue, and yellow tinges depending on model; believe this is an issue in most and that companies are still working to overcome.
I like the sigs for the super fast ballistic engine, spot on ranges, and paired phone app is decent. Some buddies have vortex furries and they take FOREVER to range in comparison. Not sure about other models but that was a big turnoff for me. Having a Fog mode is great and helps significantly but all can suffer to range correctly in dence stuff. Go try some out in field conditions and then figure out what price point you're comfortable with as I think this is one tool where that makes a significant difference.