I've taken Backstage Magic and thoughtit was wonderful and worth the money. I'm not interested in traveling outside the US at this time, and the trip I was looking at and possibly planning is not offered (Yosemite) in the new schedule, so until they bring in one I might take, no need to post.
We did the Tauck Bridges trip to Yosemite last summer. It was great. Austin-Lehman has added a Yosemite trip to their 2011 intineraries, as well.