At the exit of the ride, there's a "recovery" area where people who don't step off the ride feeling wonderful can recuperate. And there's almost always people in this area. So take that for what it's worth. I've ridden M:S once with no bad effects, but have decided that any ride that requires people to take dramamine or similar medicines and also requires such a strict ride discipline ( eyes locked on screen, don't peek around, etc... ) isn't something I want to risk my vacation time on again. Don't want to be a wet blanket, but it really doesn't matter how many people ride with no problems, you won't know how it affects you until you ride. Good luck!