I'm now on the XDMS alpha. Much thanks to
@EuroDriver for his generous time and patience with the install.
Just a few early observations.
If you're the type of person who is intolerant of bugs and instability, it might be better to wait for the beta or the final version, otherwise, you might find yourself frustrated or disappointed. This is an alpha after all and I'm not sure what type of support will be available.
Because Concert mode is less stable with this current build, Ed suggested to stick with Discovery mode where gaps are quite long. If gapless is a must have, it might be best to avoid this alpha.
I received a private comment expressing disappointment that XDMS should be much further along for a product that has been nearly 2 years in development given all the bright minds that are involved. Yes, the interface is still a work in progress but it's clear to me where all the effort has been put into and that is SQ. If there is a certain functionality missing, it's almost certainly because it was compromising SQ. With all the delays and hype, I was thinking to myself that it will be difficult to meet expectations and yet expectations have been met from my standpoint.
While this is an early alpha and Emile tells me to expect things to sound significantly better because of a recent discovery, this build is sounding very good as it is. The Steves did not exaggerate and I agree especially with what Christiaan said. XDMS has the technical precision of TAS (even better probably) but with the fluidity of Roon. There is none of TAS' dryness but also none of the bloat and smearing of Roon. PRaT is notably better with a fiercer attack and yet there is also a greater ease and more cohesive flow to the presentation compared to either TAS or Roon. You hear it instantly.