Here's our review from Nov:
DH and I tried this tour because Epcot is one of our least favorite parks and I thought we might need to be edumacted a bit about it to enjoy it. The end result was that we did want to spend more time in the WS although it didn't replace AK or MK as our favorites....
We met outside of the park at Guest Relations. Our tour had over 20 in it (27 I think), 2 of those people showed up late and met up with us later. We walked through Future World and our guide (can't remember his name!) told us about Walt's vision for Epcot, other nicknames for Epcot, generalized information.
When we reached WS we began with Mexico and walked our way through each country. He explained what the imagineers hoped to create with each country, pointed out places where other countries could someday go, some details about each, and pointed out a few hidden Mickeys. A few things we knew, most we didn't. If anyone wants details, ask, I just didn't want to ruin the tour for anyone... We got to go backstage briefly in France and Canada.
We finished in Canada, filled out a brief survey, and received our pins (very very cute). Later in the week we returned and walked through WS again and definitely saw it very differently, so for us it was worth it.
HTH, if you have any questions ask away