I don't believe that many have had the chance to try them, hence the dearth of impressions.
To my ears out of my MSZX2, the Aether is insanely airy with amazingly resonant mids that stray away from thickness and incredible treble air with tons of sparkle that hardly if ever comes anywhere near sibilance. Beautifully balanced in switch down mode; maintaining a largely flat response with jaw dropping resolution. Switch up turns it into a bass monster; with textured, well extended bass that punches hard but bleeds minimally, if ever, into the other frequencies, with incredible attack and natural decay. The treble also gets a lift to match, increasing its already addictive shimmer.
Can't wait for my pair to arrive, hopefully in the coming week!