Well in short: after a long time testing the demo ...
it does not sound natural at all!
Nothing to do with real sounds.
it sounds more like good synth sounds or digital piano, that is cold, and too asseptisé clean, flawless.
Daccord is not ruined, it takes little space and breathe the CPU ... and it's a big advantage at the finish but it's the same difference between a real piano in a character graphics and a real actor.
Drowned in a mix, it will, but not for piano solo.