The house in Nerima is extremely comfortable if you're a family or big group. It's got a room (and toys) for kids to play, a projector for when you're tired or the weather's bad, and a study if you need to get work done.
The house is not in the center of the city, but it's minutes away from three train lines. You can get most anywhere within an hour. There are two supermarkets right around the corner and a variety of restaurants and parks.
We rented the house while we looked for a place in Tokyo. My kids did not want to leave when we did find our new apartment. Throughout our stay, Chisaki was responsive and flexible. We really feel we owe her.