We went on the RC Liberty in Feb 2012 to the Caribbean. We just returned from the Disney Dream and was suprised by difference. I would rate the RC an A. Disney B+. RC is alot less $ and has better features.
Disney check in was the fastet I've experienced - BUT totally uninfomative. We were told to board the ship, but noticed a long line at the right of the terminal. This line is for the kids club to get their gps bracelet. To save time you may want to do this on the ship.
What I loved about the Dream: