Hisao-san place is really great, very suitable for solo traveler. Hisao-san's responds on messages really quick, arrangement of check-in and check-out process was smooth. The location is great too, 2 stations (Hibiya and Yamanote) within 10-15 minutes walk. Breakfast was also provided every morning (the sandwich is delicious). After check-out, Hisao-san offered a ride to the train station as well. Most likely will stay here again in my future trips.