I can highly recommend this apartment. It is in an excellent location, very close to Akabanebashi station and easy to get to and from both Haneda and Narita, as well as most major stations. There is a reception open every day until 10pm which Is always a plus. We were 2 adults and a child and the apartment was spacious enough for us and our luggage. Communication with Akiko-san was always very easy and she replies to messages very quickly and comprehensively.
Thank you for your hospitality, Akiko-san!