My wife and I chose a 2 week cruise on Britannia embarking on Barbados and visiting 10 islands before returning to Barbados to fly back to Gatwick.
The flight out was on a Thompson 787 dreamliner, and although delayed, the aircraft was great, very modern and high tech. The only surprise was that as it was a P&O charter no drinks were provided, even soft drinks, which was a first on a long haul flight.
Arrival at Barbados was uneventful and typical of P&O's organisational skills with a smooth transfer to the ship.
The cabin was well laid out and had all the facilities you needed.