Had an outside cabin on Panama Deck which is deck 5. The cabin was a twin with large window and great layout. It was a quiet area very handy for Atrium, Playhouse and forward lifts. Also great for disembarking at ports as deck 4 brow was below.
TV was boring but it was useful seeing moving map and SkyNews. P&O used to sell duty free alcohol for consumption in cabins but they have hiked prices significantly so it is no longer worth doing.