Damn, impressive.
Now to figure out how to be able to use this with STV demos, imagine being able to customize your _events file with the demo filenames, ticks, team and player (or just playerid/steamid) to spectate for some automated recording there.
I've skipped through the tutorial where it also fastforwarded to the actual setup process with commands, so not sure how easy it is to load your TF2 with the right recording hud/high quality config (or if it's as simple as setting that up in /custom before launching the game)