hi i have just been on the 787 doha-dubai it was the worst seat ever, i agree the head rest was good but the seat was hard, no leg room seat box was in the way I'm only 5'11 and my knees were hitting the seat in front, I would avoid this aircraft at all cost even for a 1 hour flight
the seat pan moves forward so no way that you could move if you were bigger than me, my partner is 6ft4 knees were hard against the seat in front that person could not recline at all or he would not be able to sit, for a 5 star airline to have 31 inch pitch is jut a joke, no perm economy I am not sure what they were thinking AVOID AT ALL COST