There's some pretty high level play in this demo and you can see that it's a serious game, but it ends rather abruptly in the early mid-game before things get really interesting.
Both players build a fair amount of flash tanks and expand solidly reclaiming rocks. Si1encer perhaps falls into the old trap of concentrating too much on securing the middle with Guardians while Tiptushi doesn't get too worried about it and gets started on his level 2 tech.
Props to Tiptushi though. Going for such an off-the-wall Commander assasination strategy in the tournament game takes some balls.
If you need the Spiral Tab map you can find it in the tournament map pack.