Ok, I saw the show yesterday and here's the scoop:
Portions of the show take place on the stage, portions are on the dance floor. Kids (and adults too) are taught several different country line dances and can dance along with Goofy, Chip, Dale, Bullseye, Jessie, and Woody. 20 minute shows start on the hour at 12, 1, 2, 4, 5, 6, and 7.
There is a section on the right side of the theater for guests traveling in wheelchairs and their families. Each show can accomodate 8 wheelchairs or ecvs, there is no limit to party size traveling with the guest in the wheelchair. There are benches on that side of the room only, and they are for wheelchair parties. It may not be the best view, but the show is really more about interaction and music, rather than spectacle. The characters do a fair amount of mingling, and all the people standing in the middle seem to be concentrating on doing the dance steps, so they're not seeing much either. This is not a passive event like a parade or Fantasmic, but if you like country-esque music, and the characters featured in the jamboree, you should have alot of fun.