Hiroaki was an excellent host and accommodating. He was respectful of our space, but still checked in via text to make sure we were comfortable, needed anything and were enjoying our trip. The place is near a Tokyo Metro line and a slightly longer walk from the JR Okubo stop, which is good if you are using a JR pass for your trip.
We were on the first floor. The beds were super comfortable. Also, he made sure we had fresh towels during our week long stay. Our hosts were on the third. However, they were gracious in allowing us to the second floor living room and kitchen. One thing to note was the entire house used the shower on the first floor. Still, we never ran into any trouble of the bathroom being occupied. We were not able to use the roof access, because most of the Tokyo trip consisted of rain. Also, he is located near the Shinjuku nightlife and Golden Gai which made it easy to get home after a couple of late nights.