We chose this QM2 cruise because we had never done a crossing and the seven day length seemed a good way to try it. We were in the middle group, Princess Class, anbd dined eveninns in the Princess Grill. For breakfst adn lunch we chose the Kings Buffet (the larage cafeteria that served the whole ship).
The voyage included three formal nights, and in the Queens Griolle most men wore dinner jackets (although dark business suits were acceptable). Women ranged from smart pants oufits to gowns.
Three series of lectures covered serious topics and were of good quality. If you missed alecture it ran for the next day on closed circuit tv.
Best cabin I can recall. Quite large with ample closet space. Comfortable bed, sofa and chair. Bathtub and sizeable bathroom. Good TV (although the channel offerings were not wonderful and sometimes not reliable).