I was at WDW May 13th-May 23rd and did three tours (KTTK, Backstage Safari, and Around the World on a Segway. I really enjoyed the KTTK tour. I was in the first tour of the day (8:30) which according to the tour guide is usually the smallest group. We had only seven people in our group and had a really good tour guide. It was very interesting. The Segway was alot of fun and I'll be doing it again when I go back in September, but it was more about the Segway itself than any interesting fact about Epcot. Backstage Safari was OK. We got to pet a black rhino and a spiny lizard, saw the holding area, vet area, and food preparation area, and had our own safari (without the Big Red/Little Red spiel), but it was only OK. The Segway was fun if you like the technical/mechanical stuff, but KTTK was better if you want real Disney trivia/inner workings knowledge.