Read positive reviews and decided to stop by for a late lunch as we were in the Shimbashi neighborhood. It's in a basement just as you come out of Shimbashi station, opposite the old locomotive and near McDonald's. You might just miss it though, so look carefully. Since we were there after lunch time, it wasn't very crowded and just 4 people in front of us. Took about 15mins to get in. You'll have to queue on the narrow stairs and there's people squeezing past you to go downstairs :)

When our turn came, we used the machine to order the full set (as always!). The good thing is all menu options are in English and the staff speak passable English too. They lead you into a small cubicle, so a bit of privacy :) For the set, apparently you could choose from 5 different items (which is what the menu said) but we just got 5 standard items (like egg, seaweed, extra chashu etc). because we weren't sure where to exercise these options. There are other add ons on the menu and you could order them. Fill in the options for the ramen like - spice level, noodle texture, richness etc. on a sheet. Press the button when ready and the staff will appear from nowhere to take the order. You don't see them as they're kind of part hidden behind the screen. They serve you quickly and once the bowl of ramen is served, they pull down the little screen through which they served the ramen, and let you dine in privacy. At first they serve a hard boiled egg (for the full set) and they keep a small card that says you could call the staff if you can't break the shell!

Ramen was delicious and came exactly as ordered. Rich tonkotsu with nice springy noodle texture and a bit spicy (even for 'mild'). Soft cooked chashu added zing to the ramen. Nice, hot and a welcoming bowl of fantastic ramen, so we just slurped it down as we always do in Japan!