FWIW, I heard the Exakt system at Definitive Audio's Music Matters last year.
They used a Linn Akurate Exakt DSM and Akurate Exact-Akubarik loudspeakers. Frankly I wasn't impressed. The worst sound of the night was Devialet's Phantom presentation, but if they hadn't been there, I would have rated Linn's demonstration the worst and this is from an owner of Klimax gear (at the time). Best sound of the night was ARC gear with the new Wilson Sabrina speakers and it wasn't even close.
Here's Stereophile's report on the event http://www.stereophile.com/content/music-absolutely-matters-definitive-audio
Interesting how the sound of a system can vary so much from room to room and from dealer to dealer. Obviously the set up at Alma audio was done correctly and with some thought as to how to optimize the sound for the room.
While the system that I heard that night wouldn't be in the top ten that I have heard, nonetheless it made music and was impressive for what it accomplished with a digital feed. I have heard much much worse- and from gear that is far more expensive.
I do think that one cannot judge a system or gear from just one exposure to its sound in a specific event. Much better to take the gear home and listen at one's leisure to the music that you are used to and in your own room, IMHO.