Go with the recommended Tou-nyu Dashi (organic soy milk) broth, it's the white one in the above pix. It's tastes great, subtle and not overpowering. There's an all-you-eat menu but we went for the sets. What else can I say about Japanese beef that hasn't really been said? My suggestion is stuff yourself silly with them whenever you are here. You often hear folks hyping bout the sushi and sashimi here but don't forget the other meats.
And now this. Japanese menus and menu boards, they are everywhere and I just can't get enough of them. So much to learn.