Originally Posted by
corporate-wage-slave
For BOS-LHR and reverse, that's presumably a jumbo 747. Now these do have, at the back of the aircraft, some 2 person seat set-ups, so if you are a couple these are highly prized.
Good advice. These also have extra space on the fuselage side as the aircraft narrows. The only downside (against other seats in Y) is that you will be among the last off the plane (+15 mins?). And you are close to the heads.