If she likes the ride where you stand in the round room and it spins and pins you to the wall and then the floor drops, or Round up rides where you stand in a cage while the wheel spins, again pressing you against the wall, she should be fine.
I thought it was cool, but not especially frightening or overwhelming. I didn't feel any aftereffects (nor did I see throngs of staggering, nauseous people) Maybe that was Non Nausea Day at Epcot, but I purposely looked for all the people who are supposedly floored by the ride and saw not a one. That day, that hour, anyway.
That's not to mock people who genuinely had a bad reaction. I just don't think the reactions in general are as extreme as they're made out to be.
I definitely wouldn't recommend it to a claustophobic person. I'm not, but when the panel starting coming toward me, I thought "this would not be good for somebody with issues."
I'll ride it again (once) on an upcoming trip, but it's not something that I want to do more than once per trip. Not that kind of thrill -- more of a cool sensation.