Harumi made us very welcome in her beautiful riverside apartment.
She responded very quickly to our questions and provided us with very clear directions - her English is very good. She provided some snacks and cold beers on arrival. The apartment was immaculate - spacious by Japanese standards, light and airy and well appointed and with comfortable western style beds. It was very well situated; great views across the river to the Skytree, close to the temple and shops/restaurants and very close to the underground station. It was fairly easy to access Narita international airport on the Narita Express (covered by the JR pass).
We had a great time in Tokyo and highly recommend Harumi's lovely apartment.