Koichi is great host that helped us settle in quickly and has been very quick to respond to all our question and requests. The location is great as it is just a few hundred meters walk from shinjuku subway. The apartment is small and clean but probably standard for Tokyo especially at the heart of the city. Anyway it has everything that we need and our group (3 adult n 2 children) could stay comfortably. It will be great if Koichi could reconfigure some of room door opening/closing direction :)