We are down to 27 days until our trip, and when I viewed my reservation today on-line it said I can do on-line check-in 10 days before we arrive. I'm wondering if anybody has used this service before. We're staying at the Contemporary in a Magic Kingdom View Tower room, and I do kind of have my heart set on staying on a higher floor. It says you can request specific rooms, but that they are not guaranteed. I'm wondering if it would be better to just wait until we arrive and check in the regular way. Do you think I'd have a better chance of getting the room I want if I wait to check in?