We spent a lovely week in Yanaka at Hiroyuki's apt. The location is really great, it's a short walk from two different subway stations. His communication was prompt and helpful, even thought it was all via email. The apartment is comfortable and really beautifully decorated (and spacious!). The location near the sento is cool, but the apartment was super hot during the sento open hours. We had to run the AC constantly to keep the temp below 30 C. Please note that the laundry machines are at a small local laundromat a few doors down from the apt, not in the unit itself.

Although Yanaka is a super safe neighborhood, we were uncomfortable with one glass door and no chain lock (or equivalent inside lock).