This is actually one of two reviews I've written for this location (we needed an extra night and moved to room 401 for a day, located in the same building).
The location is right next to Iogi Station. The area is quiet and peaceful due to being a little far west from Tokyo's center. We were interested in walking around nearby Nakano and Koenji, so this wasn't an issue. If you want to go to Shibuya everyday, you might want to stay closer to the middle of the city.
The host responds very quickly to messages. This location is small, but accommodates two people with a set of narrow futons.