Our small family spent 10-days at Sayako's apartment on our recent trip to Tokyo. The place was spotless on arrival, and Sayako communicated clear instructions on how to find the place (which we were grateful for in the dark!) and how to check-in. Being only about 10-minutes from Osaki station (which is on the Yamanote line), you're less than 10-minutes from Shinjuku/Shibuya/Harajuku and only 15-minutes from Tokyo stations. The hidden gem of this place is being close to Togoshi Ginza, though. We spent several evenings strolling through the hundreds of shops lining the street, meeting shopkeepers who were very kind to us, and finding places to eat. Highly recommended!