I’ve owned and used RFs from many brands, including Bushnell, Leica, Sig, Leupold, Zeiss, Swaro, Nikon, and probably others that I don’t recall at the moment. The RF performance of the Bushnell and Leica have been the best, followed by Zeiss and Swaro. My RF experience with Leup, Sig, and Nikon was mediocre. I owned a few Sig 2000 and 2200 units, and none of them would even come close to their ratings on objects in the field. Bushnell would range trees and rocks beyond their stated ratings, but the glass was not great. The Leicas, including the LRF 1200, a couple of Geovids, and a couple of CRFs have ranged reliably, including on trees and rocks beyond their stated ratings, in good conditions, and the glass is excellent. I did need to use Leica’s warranty service once, and while the experience wasn’t great, I did end up satisfied in the end.