The number one benefit of the last row of Club is that the window seat occupant can get out into the aisle without having to climb over the aisle seat occupant. There will be a little passage behind the head end of the forward-facing aisle seat. Hard to describe, hard to draw (although Tits McGhee made a good stab at something similar). You'll see exactly what the benefit is when you get there.

It's true that the WT+ bassinet position may be just behind that, but speaking for myself I have seldom seen children, let alone babies, in W.