Place is as advertised. Everything was well provided -- there's a blow-dryer, iron, television, tea kettle and also toiletries. That made my stay very pleasant and comfortable!
The room where I stayed was near the window facing outside so I could smell hints of smoke from people smoking downstairs. Masahiro was thoughtful enough to put a deodorizer in the room, though.
Place is accessible but might be difficult for people with big heavy luggage. Most of the stations in the area don't have elevators and there is a bit of a steep climb from the station in Yushima to the place. Otherwise, in days where you are travelling light, there should be no issues. There is also a convenience store a couple of blocks away.
Check-in was well-explained but there was some difficulty having one's picture recognized by the device especially when lighting is low in the check in area.
Masahiro was quick to respond to queries and concerns and that was much appreciated!