My wife and I have been on well over 30 cruises, and we are diamond on RCCL. We had a great time on the Quantum, and believe it really is a step forward in cruising.
With that said, I recognize there are a few kinks, but will get to that later as they in no way detracted from our overall positive experience.
Embarkation and getting off the ship was faster than I've ever experienced on any cruise line anywhere. 20 minutes to get on, 15 minutes from cabin to car.
Great -The cabin was high tech, well laid out, spotless, plenty of storage, thoughtful when it comes to ability to scoot suitcases under the bed, more closet space than normal, hooks everywhere - great