My friends and I had a wonderful week staying at Norimasa's. He was the perfect Airbnb host, and was very friendly, helpful and responsive. He is also fluent in Mandarin Chinese, if that matters. The apartment isn't that large, as one would expect in Tokyo, but everything is very functional. The bathroom was brand new during our stay, so we were lucky to be the first people to use it. Nakano, is a hidden gem which has somehow managed to remain relatively local and tourist free. There are countless tasty restaurants, bars and the likes, hidden in the narrow streets, nooks and crannies in the neighborhood. One week there and we had barely scratched the surface.