surely something like this would be incredibly hard to rate as we would all have slightly different tolerances for motion sickness.
Just got my DK2 today, never used a DK1. Ran around in Tuscany for about 5 minutes ~45 minutes ago and still feel sick 😞 Number 4 for me. I used to get motion sick quite bad as a child but at 32 it has mostly gone away. I'm hoping I just need to get used to it and that my excitement lead me to run around way too quick in Tuscany.