I have to think that most of you looked at a couple pairs of the XOORs, saw the ugly frames, and dismissed the deal. I looked at all of them and ordered four nice ones. I got them all today.
The two metal-framed pairs I got are quite nice: one silver frame, one black, both with mirrored lenses, spring-loaded hinges and what seem to be glass lenses. The black ones look like one of the "Matrix" styles. The plastic-framed pairs are ok, and the build quality is nice, but only one has spring-loaded hinges. And contrary to the way it seemed from the pictures, they're not overly large. In fact, I don't like them as much because they're a little on the small side. Optical quality on all of them is on par with any $100 sunglasses.
All in all, I'm very happy with the purchase. These make a nice addition to my collection of Oakleys, Maui Jims, Hobies, Gargoyles and Serengetis. Now I should really find a rack to hold them all. Heh.