The flat was as it was described.
Just a little disapointement at the begining because the sink was not clean.
I said it to the host and I'm sure that it's gonna be better for the person after me !
The futon was confortables and the flat convenient.
It's really à good deal to take advantage of Tokyo !
We didn't went to the public bath we Did it like "camping style" with the boiler and the sink ! That was fun !
We used the JR pass and walked to the otsuka station each time it's like 20 minutes walk. If you don't w an to use privates line it's OK but you have to walk a bit ;)
You have a lot of shops around and if you go there around 8pm you have some reductions on fresh food and bread !
Walls are really thin so you have to be quiet and have some ear plugs (our neighbour was noisy when sleeping ^^).
Don't hesitate to go there you will have a good time living there and visiting Tokyo !
Thank you for all !