I got to ride the Dollyfood one, and it rode exactly like I expected it to... A little less forceful than I expected, but it really is just a frisbee, with the arm turned upside-down, and with a barely noticeable counter-rotation of the whole ride. (The swing direction changes, but without off-ride landmarks, you might not notice from on-ride.)
It isn't bad, but obviously the reliability just isn't where it should be, so good luck, if that's your main purpose for visiting!