Eventhough valid points have been raised in regard to studio production of the demo's, and true that most of us can't like this, I don't think many can argue that the sound is as realistic as it gets.

I have Colossus in my Muse Receptor, and agree that the samples are of better quality than can ever be achieved by any standard keyboard. The Wersi, being open ended, would produce the same quality.

This, however, is not to say there are not other issues using large samples like Colossus.