Based on all of your input I decided to let my daughter try the WindSeeker. I went up with her, of course. She loved it! I, not so much. Heh. As soon as we landed she said asked to ride it again. We ended up riding it at least five times that day.
On the first ride I was so concerned about her that I wasn't really thinking about my reaction to the ride, as strange as that sounds. For some reason it got worse for me with each subsequent ride. There is no reason for a human being to be up that high without an aircraft. As some of you mentioned the ride isn't physically uncomfortable at all,