Rin's place is a little gem in the big city! Rin herself is the perfect host, reactive, available, helpful. In a nutshell, she is always ready to help! And the place is perfectly suited for a solo traveler which i was. I have particularly appreciated the airco due to the extreme heat wave! But it has everything you need and if you stay a few days, she also offers (among other options) a laundry service (actually it is an overnight service)!
I would highly recommend her place and would stay there when i come back to Tokyo