Choosing to stay in Hisao's place is one of the best choice for our trip in Tokyo. It is strategically located to be close to the Yamanote line (10-15 min walk from xxx station), which is a loop line that connects the important parts of Tokyo together (e.g. Shinjuku, Shibuya, Ikebukuro etc).
In addition, Hisao san and his wife's hospitality is impeccable! Every morning, we are served handmade sandwiches (made by his wife) that were truly delicious.
During our stay, we were invited to join a beer party that was held to celebrate the birthday of one of his students.
Lastly, on our check out day, we had to leave for Narita airport early in the morning (leave his place at 6.30am). To our (very pleasant) surprise, Hisao san offered to send us to the train station, making our trip to the airport a lot easier!
Hisao's place is definitely recommended! Do stay here if you have a chance :)