The AAD had barely any time to break-in, but if the smoothness of the mechanisms is anything to go by, it will exceed many of the vintage gear. What I couldn't wrap my head around was a full-color touch screen on a tape machine.
But from one comparison we did, fresh out of the box, it was as good as the A810. A little lean - but that's because of brand new electronics and solder joints. The low-level signal electronics will take a long time to break-in. As long as it takes a phonostage to break-in. May be 500 hours.
Compared it to Ki Choi's "ultimate" everything taken care of personal machine, it's close and may exceed it if broken in.