We spent a delightful stay in Yumi's place. The apartment is neat, well equipped (kitchen appliances, washing machine, Internet access...) and well suited for a family of 4. The location is ideal, in a quiet and safe area of Shinjuku, at only a short walk (2-3 minutes) from the metro station. You will find all the convenience around, with a large variety of restaurants.
Yumi was helpful to fully enjoy our stay in her place and in Tokyo.
We hardly recommend Yumi's place. You can book with no hesitation.