The place was an amazing stay. The massage chair was great and very useful after walking for a long time. The place was very comfy and had a home like feel to it. It is also very convenient to the JR Yamanote line (Shin-Okubo Station), as that is the line that will take you to all major tourist sections in Tokyo. The stairs are steep so use the hand rails when walking up and down the stairs! I will say that the walls are thin so you may hear people outside during the night.
Chie is great host to communicate with and answered all of our questions and concerns in a timely manner. The pocket wifi provided was very easy to use. I would recommend for larger parities to also rent an extra pocket wifi if you plan to separate during your exploration of the city. To all Square Enix fans, this place is in a good 10-15 minute walking distance to Artnia and the Square Enix headquarters as well! It is a great location and a great place to stay. My family had an amazing time staying in this cozy apartment. I would definitely recommend this place to my friends and will definitely come back in my next trip to Tokyo.