The most important thing about Mission Space is, even if the single rider line is less than 5 minutes, *do not* ride it more than a few times in a row. I can ride anything and feel absolutely no ill effects, but after riding Space 5 or 6 times in a row, I felt dizzy for the rest of the evening. It is a very fun ride, relatively tame in small doses, but many trips without a break will definitely cause problems.
Honestly, in objective terms, I don't find Space to be that difficult for people to ride. Obviously the extremely claustrophobic shouldn't ride, but my claustrophobic mother had no issue riding it several times.
There are better rides to start with, like Body Wars / Star Tours, Splash and BTMRR, but it's probably easier than the Tower and RnR.
Honestly, in objective terms, I don't find Space to be that difficult for people to ride. Obviously the extremely claustrophobic shouldn't ride, but my claustrophobic mother had no issue riding it several times.
There are better rides to start with, like Body Wars / Star Tours, Splash and BTMRR, but it's probably easier than the Tower and RnR.