Service dog at Disney World

Hi! My last post was also about service dogs, but I had a question. Has anyone taken any sort of service dog to Disney World? I am getting my new Medic Alert dog (a labrador) in August, and we are going to Disney in December. And taking him, of course!! :) I know we will be able to enter attractions through the exit without waiting (woohoo!). Many of the rides he is allowed onto. Except Rock n Roller coaster, and those big coasters that I'm not a fan of anyway. So does anyone have any wonderful Disney dog magic experiences they'd like to share? Awesome! :)