Yukikos place was my first stop in Japan and I couldn't have chosen a better place to take my time to arrive... Senjuôhashi is a beautiful shitamachi (suburb) area, very close to the 'actual' Tokyo, but still very different - peaceful and releaxed, but at the same time it has beautiful izakaya (drinking bar) passages and little restaurants. Just walking around Kitasenju a while is worth it! I felt like the only foreigner who ever went there (and I met no others), which is definitely different from, say, already the Nippori area only a few stops away.
Yukiko and her family are great hosts and very friendly. I had all the space I ever needed in my clean, quiet room, even a little table to work from and a seperate entrance. I was always glad when I met someone of the family to have a little chat. I would definitely come back to this place and can highly recommend it, especially if you are looking for something a little bit more "authentic" than a backpackers hostel.