This was our second cruise with P&O and we chose the flagship I will try to give a true and honest opinion. We stayed in cabin A324 on deck 15 which was a superior deluxe balcony cabin.
The ship is large and new so decor is very nice, the staff had a very good attitude, the Selection of food and quality was good, cabin smaller than previous ship Azura, balcony was very small and we had no sun because top deck has about 15foot overhang which totally blocks the sun except for about 15 minutes when it sets in the evening, entertainment was ok, Boarding and leaving the ship was as specified and very organised.
Bad points: -
Smaller then previous ships but overall standard was excellent, balcony was very small and had no sun at all. Cabin steward was very good and cabin was serviced twice daily.
I think that the bed linen should be changed more often that it was.