It's pretty similar to Sansotei. I've tried a lot of ramen shops this year and I don't see a notable difference with this one. I had the black tonkatsu ramen. I find Kinton's broth richer. This place is good too but I think Kinton wins. I think the "blackness" comes from something burnt. Which I thought tasted good but left a slight after taste.
It's still very good. I would return but Kinton is my top choice. Prices are pretty standard for a ramen place.