Using Vortex Optics binos right now. I have some Swaros and IOR Valdada glass too. The Swaros beat them all, but the Valdada and Vortex are very close for the price. The IOR Valdada's are very heavy though; made for hard military use, so I don't carry them very often. The Swarovski's I don't carry to much because of their expense and I don't want to damage or loose them. For the price, Vortex are hard to beat IMO and they have a lifetime, no fault, unconditional, transferrable warranty. It is Chinese glass, but it is BAK-4 with different levels of coatings and they have good QC.