I stayed here because my flight arrived too late to make it to my final destination and I had to get back to Haneda in the morning to get the bus, so cannot comment of location relative to any Tokyo attractions, restaurants etc.
Very close to a station, although there is a station on another line a 5-10 min walk...
I arrived at haneda at around nine to ten. The inn is located near keikyu kamata station which is near the airport.
Overall a reasonable stay. The inn had a public bath(sauna and onsen) and basic services were included. Good place to stay for a stop over