Keiko's apartment is clean, simple and spacious enough for 2 guests. It has all the necessary amenities for a short stay. Samezu station on the Keikyu Line is literally a stone's throw away. There are convenience stores, fast food joint and a few restaurants and cafe nearby. Check-in was fuss-free and easy and after dropping our bags on the first day, we took an enjoyable stroll along the Shinagawa section of the Old Tokaido Road, the ancient route between Tokyo and Kyoto. The route winds through a series of shrines, family-owned shops, a canal, cafes, bakeries and restaurants.
However, if you're a light sleeper, do prepare some ear plugs. The apartment is right next to a busy road. Even though we closed the balcony glass door, we can hear the din of the traffic from early morning, around 7am, till about 10pm. But if you're used to the city life and noise, it wouldn't be big deal.