Gershman Black Swans

Did anyone hear these at CES and/or does anyone own these? I have recently heard excellent things about them and the reviews appear to be uniformly good. Since I don't anticipate being able to demo them anytime soon, I'm curious how they would compare to my VSA VR-7se's, which I am using with a Velodyne DD-15 sub. Same league? Better? Not as good? Similarities? Differences? Any positive input welcome.
Thanks in advance.