Hello people. This is a really small issue, but can make a difference if you travel long haul on Y class, so just wanted to share the nitty gritty detail. I figured that leg space underneath the bulkhead/exit row seats are limited, mainly because the entertainment system console. Try to avoid the seats behind these rows, as you might suffer the limited legspace on a long flight, like me

(I was seated on 2nd row of Airbus 330)