Ichiran has two major drawbacks. The first is that you have to wait a very, very long time. Even on non-holidays, after peak dining hours, you still have to wait at least over an hour. So, if you're not a bit patient or too hungry, you shouldn't come.
The second is that the prices are quite high, and they have recently increased their prices.
Aside from the drawbacks, as a chain ramen shop, I think Ichiran is quite strong. Basically, in Japan or other places, the taste should be indistinguishable; it's all the same.
Another point is that I really like Ichiran's special spicy powder; I always feel it’s just right.
Overall, the noodles are still quite good, but you really have to wait a super long time.