Just landed yesterday in Shanghai. I'm on my 2 week journey in Asia, I will try bunch of ramens, especially when I get to Tokyo in 4 days, and tell you guys my experience.
So yesterday I went to Butanchu Ramen. This is the address on AMaps
PutuoYejiazhai Road No.100 the x tower Park Block 10 Floor 1 Room 151
And name on amaps is "Kyoto Yichengsi Stretched Noodles Tunren (Yejiazhai Road Branch)"
Anyway. Waiting time was an hour and 20 minutes. But honestly when it comes to ramen, the longer the waiting time the better the ramen is. And it absolutely did not disappoint.
When you get there, you take a number and you get notification each time the line gets shorter, so you can go take a walk and return later.
You choose types of tonkotsu (with salt or with soy sauce), I took it with soy sauce, there are 2 more types I can't remember. Types of noodles (3 types, thinner, "dragon noodles" which are kind of like engraved and one more thicker ones), and toppings and so on.
Egg could have been a bit more marinated, and meat was good, for pork meat I would give it 7,5 out of 10
But guys, the broth was absolutely spectacular. It's 20 out of 10, home run, just absolutely delicious.
I personally like thinner noodles, they were as well 10 out of 10. I used to underestimate how important they are to ramen, but it does make so much difference.