Very nice place, the real Japanese living experience with a tatami room (with futons) and a Japanese style bathtub (bring your osen bath salt!) in addition to the living room / kitchen with sofa and a bedroom (with 3 single beds). Place a bit older than what I imagined from the picture but it is properly maintained, fully equipped, and clean. Actually it made me remembered the place I was living with my grandfathers long time ago (nostalgy).
It is located in a typical working class residential neighborhood with many daily life shops all around and just next to a subway station so we are never far to all places of interest in Tokyo (and Ueno and Asakusa can be reach by a nice walk). Even it is on the main road, we have not been disturbed by the noise, except for the occasional sirens of emergency vehicles.
And not the least, host is great, very responsive and very helpful.
Definitely a place I will return to and recommend to others.