One of the best comments I've heard at WDW was in May when DH and I did the Segway. As we were making our way to WS, a mom told her child, who had asked "What are those?" or something (I didn't really hear the question) "Oh, those aren't real people! They are robots!!" I don't really think she believed that, but it was funny. And the comments from all those who think it is really easy!.
It is easy, but it does take some instruction.
And it is a great tour!