Overall a great stay.
Pros:
Close to convenience stores, and the train station for the Keio New Line that connects to the JR Shinjuku station.
Toilet is separate from bathing area, all air conditioning units were functional, washing machine available, pocket wifi (although not unlimited) worked. Whole house was very modern and a please to stay at.
Cons:
Due to a lack of constant wifi connection we weren't able to adequately communicate with the host regarding arrival. We were an hour late due to the amount of luggage we had/a family member's health condition and although we were very apologetic the host made us feel very unwelcomed and kept making snide remarks.
Slatted bed base for the ground floor bed needs to be replaced.
Mattress for the bottom and pull out bunk beds on top floor need extra cushioning...you can feel the springs through the mattress.