The location was fine. It’s few stations from Shinjuku so it is convenient for you to go sightseeing as Shinjuku connects to numerous lines so most places are easily accessible.
The host picked us up at the station when we arrive so we walked together, that way it’s really easy for us to remember the house’s direction.
The place is comfortable. Just nice for 2/3 people. We rest peacefully after a long tiring day of sightseeing.
The stairs might not be a problem, the host helped us carry our luggages but honestly it’s fine for us to carry it ourselves.
Great hospitality by the host and good value for money considering the location and place.