We were lucky enough to stay for 3 nights in Kotaro's apartment with our 3 children aged 9-16. We simply couldn't have asked for anything more during our stay. Kotaro is very helpful with instructions for self check-in and how to get to the apartment and very quick to answer any questions. We loved the location in the heart of Harajuku which meant that we able to do most of our explorations by foot and could pop back for a quick break between our activities. The apartment itself is minimalist and stylish with a double height window and balcony which makes the space feel very special and the fact that it was on 2 floors is great for a family with older children. I would definitely recommend for anyone looking at accommodation in Tokyo.