by all means, yes. Go.
We did a westbound crossing in 2012 and loved every minute of it. A crossing on QM2 is not a cruise. Cunard excels at keeping your days filled with intellectual and entertaining events. If you wish to skip the black tie, you may do so-just eat in the Kings Court (which switches over to specialty restaurants in the p.m.) We loved our daily visit to the dog kennels on board (only ship to transport pets). It is a very 'British' ship , in the best sense . Fellow pax will be middle age to older, well traveled , not remotely stuffy or snobby, evenly split between Americans and Europeans-
Go ! You will have quite an adventure.