Very clean and simple room, but for a city trip and for this price it was a really good deal. The Asakusa Shrine is just about 5 min by foot, the next subway station with 2 lines is about 15 min by foot, from Haneda you don’t even need to change trains.
I was traveling alone and felt very safe in this neighborhood.
The host was very accommodating, answers were very quickly, almost always after just a few minutes. Check-in and check-out was easy as well as the administrator was there personally.