My family and I highly recommend Tokyo Candlehouse!!! The whole house was perfect for 10 people in our family, 3 generations (grandparents in their 80's to kids in their 20's) staying for 11 days. We were greeted by Kayo and her friend when we arrived at the house in the evening. I felt like Kayo was already a friend as we had been communicating before the trip through airbnb as well as an app called Robin which would translate English to Japanese and back again. The house was everything you could want for a home away from home. For my parents everything they needed was on the first floor: showers, a toilet, the kitchen and dining room (the gathering place with lots of seating) and the entry. There's a 2nd bedroom on the first floor and 4 bedrooms with 2 toilets on the second floor. There's also a rooftop area with a table and chairs for dining or just relaxing or just some quiet time. One warning: if you are tall (5'9" or taller!) you must remember to duck your head as you go through the doorways! ;)
The location is convenient to the train station (a 7 minute walk from Ichigaya station), a convenience store (around the corner), a grocery store and Daiso store (on the way from the station to the house), small restaurants and fast food places, as well as a short distance from the Imperial Palace grounds where my daughter went on morning runs around the paths. The area is very safe: we encountered a 91 year old grandma with a walker walking home at night alone, we felt safe coming home at night from the train station as well as my daughter doing solo morning runs.
Kayo came by everyday while we were gone to do some cleaning, take the trash out and we appreciated the little touches like fresh little plants and flowers around the house. So many extras are provided like umbrellas by the front door, lots of towels, toiletries for the bath, supplies in the kitchen and lots of information on things to do, restaurants to try, etc.
It was such a convenience to cook our breakfast each morning before starting out for our day of exploring. We even cooked dinner or brought home bento for about half the nights. Much better than any stay at a hotel!
Kayo was such a great hostess. She was wonderful about communicating through Robin when we had questions (we had a minor emergency late one night and Ryuta came to help), or a need (she even helped arrange for a taxi for our return trip to the airport!), or to just check on us. Thank you, Kayo!