We loved Kentaro-san's place. it's very conveniently located, close to eateries, groceries, and cool public sights such as the Tokyo Tower, the Ueno zoo, and Tokyo National Museum. We walked and took the trains/subway everywhere while we were in Japan, and with three small kids in tow, we wanted to make sure we are staying at a conveniently located place. Kentaro-san's place fits this requirement.
Beyond its convenience, the apartment is also well-supplied with everything we could need: washer/dryer machine, a spacious kitchen that we can actually use to cook meals for a family, a bath tub, extra toiletries and laundry detergent. The place was very clean, and the check-in and check-out process was very easy. Kentaro-san is also very quick to respond to inquiries. I would highly recommend this place to families looking for a home away from home in Tokyo.