The place has all the modern conveniences of a home. The apartment was big for Tokyo standards and very clean. Make sure you coordinate closely with host prior to arrival for easier check in. The area is quiet and close enough (30mim walk) or 3 stations by subway to shinjuku station or Yamamote line that takes you around Tokyo without having to take connecting lines.
It's good value but take note the place is 3 stations away or about 400yen/head round trip from the nearest station (3 min walk) to Shinjuku station.
I would recommend the apartment.