Arranging 773s in a 3-4-3 arrangement is pretty cramped for 10h+ journeys, especially since they use the aircraft to SFO, LAX, EZE, GIG, Australia & New Zealand and are going to use it to SEA. If they introduce an A380 service to SFO, as rumoured, then the 3-4-3 arrangement will be more spacious and better, and I've heard that it even has more legroom.