We pick The Britannia as she a newest ship in the fleet, we were on venture last year so pick other in their fleet. We read other comments about this ship from the guest who have been on her so was not sure if we were doing the right thing, but they say everyone as their own taste and we found the Britannia to be a lovely and friendly ship, yes she as her faults but don't all ships.
There is no staircase in the middle of the ship so you have to use the stairs to get to different floors but that where the exercise comes in if you are able to use the stairs if not there are lifts near the center of the ship.
We were freedom dining and the two waiters who look after our table were Brilliant, my husband can only eat food that is loctofree {butter,milk and cheese} so each evening they would pick the meals for the following day that he could eat.
We were on D deck 11th floor and we were a Balcony cabin which was very nice the balcony was not large but had two chairs and little table just right for us.