Great location, about 15 min walk to Shinjuku area and 8-10 min walk to the nearest station.
Check in instructions were very clear and thorough. The host was very responsive.
I stayed here with 2 other people, the place was just as described but was just a little surprised how small the space was. When all three of us were trying to get ready in the morning and on the bottom floor we kept bumping into each other. This is a place just to sleep for the night, not a space to hang out and relax comfortably. If you are okay with this then you should have no problems here.