Good stay at Hisao's appartment, the accommodation is very well located : close to Nippori station (train to Narita), close to Yanaka and Ueno (accessible by foot) and close to the Yamanote Line and another metro to Ginza and the old Tsukiji fish market. His wife's sandwiches in the morning are very nice ! The room is not very big but it is enough for 3-4 nights and the value for money is excellent !
Thanks to Hisao and his wife :)