I have to say for my sixth cruise with Princess , I was a little disappointed with the Royal Princess. The new design was poorly thought out. The rooms are smaller, especially the bathrooms.
The ship is nice; however, there are things that make you go hmmm.
Water spray pad on Lido, have it run during the day on low and let the kids (adults) play in the water. Water running off the spray pad was not thought out very well either. (understand that the Regal has tried to fix this issue)
Cabin was nice but a little smaller then I was expecting. Deck on this room was huge since we were on the front of the ship compared to the rooms on the side which were very small, on demand TV was touchy and it had to be rebooted several times. We were warned that they would lock the balcony when at sea; however, that was not the case which was very nice.