Kyoko's place is beautiful. We really loved the living room in the second floor and the traditional tatami room.
My family and I (8 total) stayed at Kyoko's place for 10 days. Compared to a typical Japanese house we've stayed at, this one is pretty big. There were 4 bedrooms total, and everything we needed. Kyoko also added little instructions to help us figure out how to use the washer/dryer, kitchen appliances, and heating/cooling units.
We loved the location because we got the neighborhood experience, it really felt like we were living in Japan. The location was also perfect to use as a home base to explore Tokyo and very convenient when it's time to return home, via Narita Airport. Within a few stops you are at Shibuya and or Shinjuku. Since there were 8 of us, being close to Shibuya was a life-saver. We could take the Narita Express from there, without having to endure a long ride in packed trains.
The Airbnb was less than 5 minutes walk from Shindaita Sation, it's also less than 10 minutes walk from Shimokitazawa Station. Being near Shimokitazawa was the big plus for us. There were so many shops and entertainment within a few minutes walk from Kyoko's place. All the cool stores, cafes, restaurants, were all nearby. I would highly recommend staying at Kyoko's Airbnb.