Walking with visiting friends around Asakusa and Google maps recommended this place on their "Explore this area" feature. Wow, this place was awesome; a completely authentic Japanese experience, and in no way tacky or gimmicky. We went a little after lunch time so it was not that busy. We chose to eat sitting on the floor for the experience and it was fun. We ordered both types of the set menu on offer and it was a good amount of food for three of us. Their signature dishes are served with "Dozeu" or pond loach, which is a small type of fish. It might be a little different than what you are used to, but it is delicious. The fish are cooked over a long period of time and you eat them in whole, even the bones since they are so soft. They have the Dozeu Nabe, a soy based dish and Yanagawa a fluffy egg based dish. I think I preferred the latter, but both were great. Our server was a sweet older lady and was so friendly. It was a really special experience to eat here and a relaxing stop after walking around so much.