Stayed for a few nights here, and it was very comfortable. It's around 15 minutes walking to Hatsudai station and Hatagaya station. The Keio New Line turns into the Shinjuku line at Shinjuku station, so you can go many places by one train. There are lots of restaurants and shops around Hatsudai and Hatagaya station. The wi-fi in this apartment is very weak, so much so that it was pretty much impossible to use, so I would watch out for that. The layout of the place is quite strange, with the shower kind of in the kitchen, and the fridge in the entryway, but it's comfortable enough. There are two Aircon/heater units, a space heater, and also a heated rug in the apartment, so we were not cold. There's a 7/11 just a couple of minutes walk away. Satsuki took care of our trash, and brought us new towels in the middle of our stay.