Have been through SFO six times in the last four weeks on international and domestic flights. Compared to LAX the only other West Coast option for flights from Australia this airport is a dream. The BART service is a big plus except for the late (~8AM) start early Sunday mornings from Downtown and the complicated ticketing machines for first time users. I've checked into my downtown hotel within one (1) hour of touchdown - admittedly with carry-on only and a good BART connection. Agree with the comments about the very limited food options and the lack of clear signage but way better than LAX.