Well I looked at it as a preview rather than something to get too much into playing. We'll see what the release version is like. I remember though even with SE4, I wasn't really completely satisfied until the Gold edition release.
The demo version leaves some doubts whether the release version will be polished enough to satisfy the veteran fans, but if Malfador Machinations comes anywhere near its previous record of post-release support, it should only be a matter of time.