Emi was a fantastic host and the house was in a fantastic location. I would never have visited the koenji neighbourhood had I not been staying there, but it was really amazing and had a great vibe, with local drinking joints/restaurants, playgrounds and really cool shops and cafes southbound towards koenji minami metro line. The flat had everything you needed, especially for a stay with kids and was very clean. There were also nice touches like a very useful pocket wifi for walking around Tokyo. We can't wait for the next opportunity to come back.