Mitsuko' place is neatly kept and it's a short 5 min walk or so from the nearest metro station. There are many eateries and a few convenience stores or supermarkets along the way where groceries can be easily purchased. The apartment is in a quiet neighborhood where it is very safe for sole travelers to walk around even when it is at night. The place is really comfortable for single traveller with sufficient space for luggages.
Mitsuko is a great host and has helped me a lot in my itinerary during my stay in Tokyo. I had trouble communicating with a grape farm owner whose farm I was visiting, and Mitsuko went all the way to contact him and make sure that I had the directions to get to the farm. It happened that the typhoon was passing when I was in Tokyo and she also made sure that the weather was fine for me to get on with my planned itinerary. Thanks a lot Mitsuko!