This will be brief,
This was me and wife's fourth cruise but first with P&O .The size of the ship is overpowering as are the number of guests that use mobility scooters and walking aids and tended to slow the flow of traffic especially when you wanted to get to the entertainment venues and eateries before they became full.Staff fabulous, check in and out of ports including Southampton very smooth.
A tip is to take a couple of bottles of your fav tipple because a night out in any venue will cost an arm and a leg and a bit more unless you are staying in one of the suite's in which case you won't give a toss.
This cabin is designed for two people yet only has one chair ,as P&O
States in its blurb all this room is designed for is for you to sleep or get ready to go out and spend spend spend,they know what they are doing.