Perspective: Have you flown WT recently if you are used to CW or F?
I fly WT/ET for work and WT+/CE/CW for pleasure. Last time I flew WT was to NRT. Luckily I was in 37H on a 77W which is an exit row with loads of room and a newish plane (G-STBF) so it was ok, although I get bored on a 12 h flight. ET/WT Is ok for occasional work flight but if it is for pleasure I would rather pay for a higher cabin.