I was mildly suprised at how good the AptXHD was using the Sony headphones. Bluetooth has come a long way.
i was skeptical of noise cancelling but the reviews i read said the sonys were as good as many other mid-to-high range headphones when plugged in and at that time i still had a couple of months to wait for my massdrop sennheisers. i was wowed by every aspect of these headphones from the documentation to the iphone app to the sound quality--even the case. and i was astonished at how well they cancelled out the jet engine noise of my space heaters i have to run in the winter--they are worth the price just for that alone. you could still hear them, but they were knocked back by at least 90-95% compared to wearing even close-back regular headphones.