Summary: A good cruise for a handicapped wife and her husband. The only "hard spots" were issues with the Royal Caribbean front office regarding accessible tours.
My wife normally uses a scooter for mobility. We booked our shore excursions months in advance through Royal Caribbean, and were assured that all the tours we booked could accept my wife's scooter. Two days before the cruise, we got an email saying that some of the shore excursions we had booked could not accept my wife's scooter; this threw us into a panic (but successful) effort to rent a wheelchair for those excursions. Because the Royal Caribbean front office told us these excursions could accept the scooter when we bought the excursions, the overall cruise lost a rating star. At least Royal Caribbean told us about the problem while it could still be fixed. Had we found out about the problem on the ship, the rating star penalty would have been harsher.
On to the cruise proper: The cruise started in San Juan, PR. We flew in on the day of the cruise, so we didn't get a chance to explore anything. Royal Caribbean handled the airport/dockside transfer. As things turned out, we were part of the last batch of people to arrive, so no embarkation crowds. We went though the embarkation process as fast as we could walk/scoot through the stations. Total embarkation time (leaving San Juan airport to our ship cabin) was about 1/2 hour.
Cabin 7612 is a handicapped accessible cabin with a balcony. The cabin was big enough to maneuver the scooter, and the bathroom had a walk-in shower. Our cabin steward (Bruno Martins) gets a shout for the good service he provided.