I'll preface this by saying I love coasters, the faster the better. I am not one of those :Rock-n-roller Coaster is the end of Advanced Disney Civilization as We Know It." RnR, ToT, TestTrack, all of them I love and rode over and over when we went this month.
That being said, M:S, contrary to what has been reported here, is not an adventurous good time like RnR, ToT, TT, or any of the Mountains.
If you get motion sickness at all, then there is a good chance you will get off of this ride feeling queasy for the rest of your stay at Epcot. How do I know? 10 of us rode it, all at the same time, and 9 out of 10 felt like..err...dog doo doo...the rest of the day.
No, we did not throw up.
No, we did not fall down screaming in agony.
No, we did not write up guest complaint cards.
No, we did not run to the nearest CM and voice loudly our dissatisfaction.
We just did not ride the dang ride again. And we went back to Epcot two more days after that.
I even tried to space out the sickness inducing rides (I love Star Tours, but as has been reported numerous times, Body Wars is a rougher ride). We rode Body Wars, then Cranium Command, then played around in what used to be known as the Wonders of Life Pavilion THEN went through Ellen's Universe of Energy...that's a couple of hours between riding BW and M:S, and I still felt horrible.
I know, I know, I'll be dismissed as another purveyor of gloom and doom (ignoring my comments on other threads about the success of Mickey's Philarmagic and Wishes for instance), but ride this ride at your own risk. There is a good chance that the G-forces induced in this ride will hamper your enjoyment of the ride.
Of course, that being said, next time we go, I will attempt it again. I am a sucker for punishment.