I just returned from a trip to Tokyo on ANA (economy class). Every aspect of the journey except one was outstanding - the check-in was quick, efficient and polite; the boarding was orderly; the selection of free reading materials was extraordinary; the interior of the aircraft was smart and spotlessly clean; the food was good; the IFE was excellent; the cabin crew really gave the impression that nothing was too much trouble.
However, the one negative aspect is a big one: the seats are narrow and the leg-room is the worst I have ever suffered (3-3-3 configuration on a 777-300). Luckily neither flight was full and so I was able to move quickly to an exit row seat as soon as the doors were closed; had I not been able to do this then the flights would have been completely unbearable. I would not fly ANA again simply because of this. And that's a shame, because in every other way they were simply excellent (and the cheapest on the route, too).