I played Moss yesterday and had a nice chat with the devs. Sadly, somehow, Sony didn't include them in their public area setup, they themselves were told just a few weeks ago. They had to settle for a small booth in the business area, but the masses will never see them there sadly - which is a shame, because it is easily the best PSVR game on the floor IMHO. Before getting hands-on, I was tied between The Inpatient and Moss, but after trying both, the choice is quite clear.
The Inpatient is very rough, many graphical errors that clearly are not on purpose for disorientation effects. Textures and shadows popping in and out, stuff like that. The demo has bad pacing, letting you do almost nothing for 10 minutes - that will be fine at home, but on the show floor, it is a bad choice. I'm sure they will get that sorted out and the game will probably be extremely good in the end.
But Moss was a blast already. It is quite polished, and the graphical quality is on par with what the Inpatient will be when the rendering bugs are fixed. Resolution is quite pleasing on both (running on Pro). And the animations of Moss are excellent, making that little mouse very lifelike, controls are tight, everything felt just right. A video of my playthrough (sadly low quality with a small part of the screen cut off) is upcoming today - a more detailled preview (in German, you'll probably have to read it translated) will follow in the coming days.
EDIT: Moss off-screen complete demo walkthrough
https://www.youtube.com/watch?v=X72f4nqx0q8