Very cute apartment, and the location could not be any better. Located right by Shin-Okubu station which is one stop from Shinjuku, a huge station that is one of the busiest in the world. A few stops from Harajuku or Shibuya, less than an hour by train to Akihabara, and also the station to leave from should you wish to go west to Mt. Fuji.
The apartment itself has adequate space and a cute balcony with a nice view of Tokyo. Chi-Yeun was polite and gave extremely clear instructions for entry.
Definitely recommend!