It's a terrific disc. I just got my copy today via online mail order since local stores don't seem to be stocking it. I was pleasantly surprised at how much I enjoyed it, especially since I'm not a big Yes fan.
Maybe it's just me, but the folks handling the multi-channel remixes seem to be getting better and better. I thought the surround mix on Magnification had a great sense of balance, providing a very nice listening experience. I also think that the clarity of the hi-rez mix is a great showcase for a title like this, where the sound itself is layered and would otherwise sound muddy (though I haven't heard the regular CD version).
Too bad we're getting great titles like this in drips and drabs. I can only imagine how excited I'd be if I could pick up three or four titles at a time with this kind of quality.