A little apartment that can hold 3 people,maybe 4 (if 2 sleep on the same bed).Can be a bit cramped. All basic amneties met(towels,soap,water from the tap,warm showers,air condition). Very thoughtful guide of appliance use,apartment rules and most importantly trash seperation.
The best part is the location,close to a JR line rail station(not too much noise).
We stayed here for a week and could travel all of tokyo without breaking a sweat thanks to the 3 minute walk to the closest station.
Understanding host,he will gladly help if needed be.