Decided to finish what I started and get through the whole demo this time. That was pretty meaty - my save file is showing 2:20. There was a funny bug at the end where you could still walk around and open the menu after going into the portal, but the screen was black.
Not much else to add. The difficulty and enemy AI are nice. Feels like the king was actually trying to kill you instead of being nice and spreading his attacks around evenly.