Keiko's place was in a great part of Tokyo for us, not touristy but a sense of living with the locals. The area has plenty of life happening around the streets with lots of shops and restaurants, plus only one minutes walk to the train station platform.
Keiko is the kindest and most generous host you could wish for, she even walked to the train station with us when we were leaving. I think it would be very difficult to find a better Airbnb host.