[YoshL]

usually the motion sickness is ok, especially for the apps/games that you control the camera with your head movements.

I did the roller coaster simulator, and oh my god i had to lay down for a bit after about 1 and a half repetitions of the track. Although, in general i'm pretty bad w/ getting motion sickness, for example if I watch someone play something like modern warfare for too long, I'll get motion sickness.