I have also joined the club! My V2.0-UP arrived today.
Initial impressions are very very good. In order to try and describe the sound, the music seems to "pop" out of the speakers far more than it did with my Naim or Nad. I guess I am saying the soundstage is better? Difficult to describe, but my older amps sound recessed in comparison.
I wouldn't say the amp is bass-heavy or bright, its seems to be fairly neutral. The sound is very engaging though and I can't wait for an extended session. I can hear lots of detail (like reverb) too.
Build wise, it is very heavy and solid and looks the business. The remote is sturdy too - annoyingly I dropped one of the screws that holds the battery compartment on and can't find it! No big deal, I'm sure I can find a suitable replacement. I noticed the same thing with the volume, I am listening to it at 36-44 and that is plenty loud enough for me.
The Abrahamsen is connected via a Balanced Input from my Dspeaker Anti-Mode 2.0, which is acting as a DAC and has balanced outputs. I am on the hunt for an Abrahamsen DAC, but they are no longer in production.
I've only had it for 2 hours, so needs burning in. However I already believe it is better than my Naim SuperNait 1 and every other amp I have owned.