It's very rare to be able to stay in your own standalone house! Everything on the first floor is a bit small, but the bedroom and couch area upstairs are quite large. The kitchen is tiny and right by the entrance. We ended up using the downstairs room mainly for our luggage. There isn't much room to dry your clothes so we used the nearby (maybe 3 minute walk) coin laundry-operated dryers. The sink room is very small, but the shower itself is a good size.
There's a nearby 7-eleven, and about 3 train stations within a 10 minute walk. shibamata station is within 5 minutes walk, but pretty much anywhere you'll want to go will require at least one transfer. There's also a grocery store and a family restaurant (Jonathan's) about 5 minutes walk away. Lastly, there's a river-walk park nearby which is great for taking a stroll.
Our hosts were extremely helpful and communicative.