I rode the orange side and felt pretty icky for awhile when I got off. Next time, I rode the green. MUCH better. Ride the green. It's perfectly fine. Fun in fact!
My husband who is prone to get motion sick said that he was ok until almost the end. Because of that he will never ride orange again. Me, I thought orange wasn't intense enough. It is in my top 3 of favorite rides at WDW.