I have never yet been to Japan, but whenever I visit a big city, I try a ramen shop. To be honest, so far it has been a let down. IDK, I guess maybe I'm expecting too much from a bowl of soup, with noodles and condiments. As a form factor, it's genius. But for the price that it is usually sold at in western cities, it really doesn't make a whole lot of sense. I feel like it has been a bit too overhyped for what it is.
BTW, you can also replicate the form factor using western cooking ingredients/traditions and it still works pretty well.