We have also thoroughly enjoyed this Princess Cruise. So much better than our recent Iona cruise in respect of drink availability, entertainment and stateroom design. It does seem you had problems dining and you want to share but if you book your table at your first opportunity, after final payment or when you book, you have every chance of getting a table for two which is what most people want. We have several cruises booked on Princess and P&O but would not travel on Iona again or Arvia. Unfortunately the new Princess ships being built are on the same sort of design but larger and have those horrible thin cabins. Not for us.
I would like to thank @Selbourne for his very good account of his Britannia cruise.