If you're looking for a good quality Ramen, then Sakanaya it is. When we went there for the grand opening, of course, there were a lot of people, but our ramen looked very oily and it wasn't very hot. The food was relatively warm rather than hot and the meat was very thick and had a difficult time chewing. At least, at Sakanaya they slice the meat into a small portion for the customers to eat but Ozu Ramen, I guess they do not care... The broth had no flavor and the color of the broth was not what we expected.
We went back again hoping that they'll change the system and the food a little bit, but it was still the same. If Sakanaya is filled with customers, then Ozu Ramen is your next choice but would not recommend if you're looking for a quality ramen. At least try it once and decide if it's worth the time and money.