Josie and her wonderful family (including the wonderful dog) made me feel like theirs was my second home. A rare, generous spirit permeates the house. It's also a perfect place for non-Japanese people who might be concerned with staying with a Japanese family and accidentally trampling so on social norms or having miscommunications because everyone in the family is fluent in English. Josie husband, Richard, is in fact an Englishman, so the household sort of has a feeling of the Sumida and Thames River intermingling.
They have 3 rooms on the top floor of their town house, though usually only two are rented out. (The 3rd room is their daughter's though she usually sleeps on the first floor when there's guests.) So you share a level with some fellow travelers (or your friends) while Josie and family are all on the first floor. There's a loo on the 3rd floor and one off the kitchen On the 2nd floor. The house has one shower/bath room.
Anyway, I can't say enough about them. If you'd like to stay in a quiet neighborhood that's also not far from Asakusa and lots of train lines, do consider Josie's place.