We have been on the QM2 several times and the special occasion will be there whatever cabin you are in. You have a balcony which is important and the rest of the ship is wonderful and there are always things to do and places to find.The formal nights are stunning without being at all intimidating. I would suggest the only real point of upgrading is to grill level but this is very expensive, although quite wonderful as each night is a total dining experience akin to a 5 star restaurant. If this is not feasible do not worry as you will have a wonderful time on the best ship afloat and the food in the Britannia is also splendid. Do find the Commodore's Club at the front of the ship on deck 10 - a great place for a drink and the side of this there are glass lifts that take you down to deck 7. Afternoon tea is also splendid but one of the few times that can get over popular as for most of the time you will be amazed where all the other passengers are. Have a wonderful time and I am envious as I can't wait to have another trip on the superb QM2.
Thanks for advice The cruise i am told is full so we couldnt upgrade anyhow. Hope the Commodore club is like the crystal bar on QE.