If you're traveling alone, this probably doesn't apply. However, if you're traveling with a companion, you may want to heed this advice. I flew QF from LAX-SYD in a 744 recently and sat in an exit row seat. The legroom was immense, but the armrests didn't go up. After 45 minutes of sleep I woke up aching all over because I'm kind of tall and wasn't able to lean one way or the other. On the way home we had a regular seat with less legroom, but I slept more. If you're traveling with someone you don't mind touching, you may be better off in a regular seat on an extremely long flight. Hope this helps!