Just took A380 UD seat 71K (preferred seat) on LAX-NRT-SIN two days ago. It was the best seat of my life. Go grab it, 50 bucks for a long haul flight is worth every cents of it.The aisle seat beside me was empty so when the lights went off,I have my own world, like having my own room. Too bad, I checked in my sleeping bag, I should have it laid there . The stewardess visits me from time to time and alway says " how are u doing over there"? and offer drinks almost every hour or less. It was amazing...Way to go SQ!