Rumika and her place are the best around in Tokyo hands down. Aside from this quaint, beautiful accomodation having such an ideal location--close to restaurants, grocery/convenience stores, subways, etc--Rumika makes for such a superb and excellent host. Communication with her was constant and reliable, she always prioritizes the well-being of her guests, and she goes above and beyond to make one's stay as pleasant and as enjoyable as possible.
My friend accidentally left her wallet behind when we left Tokyo and Rumika went so far as to do next day delivery to have it sent to our hotel in Osaka. We were so utterly thankful for this display of kindness.
Truly you cannot go wrong with Rumika and her accomodations. If given the chance to stay at her place again, I'd do so in a heartbeat!