Definitely not worth the bother. The only decent place, SSAWS, closed down recently and the remaining main place doesn't even have transporter technology. Pfff.
Don't know Yujiro, but I generally like Ishihara, although admit that I don't know 100% what he's saying. He seems to be one of the few J polititians that has balls and seems to want to get things done.
I usually drink some before and in the first few hours of the flight - it sends me to sleep. I might feel awful when I get off the plane but at least I don't have to just site there for 8 hours getting frustrated!
I really didn't like Korean Air when I used them and the food was grotesque.
BA didn't impress me either.
The best experience I had was with JAL, they were better than average.