This place was spotless upon arrival. Clean floors and bathroom. The host was extremely nice every time I saw her in passing. They gave me bottles of water and umbrellas whenever it rained. She also includes helpful maps of her corner of Shinjuku and greater Tokyo. The bed was comfortable, the A/C was nice, and the shower was hot. If you stay here with a JR pass it's a super convenient location. 5 minutes walk from a station, which leads into the Yamanote line. You get off one station later in Shinjuku and the Yamanote line shares the same platform, super convenient. However, if you only have a Tokyo Metro ticket, then you'll have to walk about 20 minutes to the Shinjuku station.