Keiko is a wonderful and sweet host. She is very kind, helpful and responsive. Her apartment definitely belongs to the best ones we have ever stayed in during our trips. It is spacious with three bedrooms and it is an ideal place to stay with the whole family. Also the location itself is very safe and the apartment is only a couple of minutes from the Yotsuya-Sanchome metro station. The whole neighborhood is full of restaurants, shops and stores reached from the apartment in a minute distance. Highly recommended.