May's apartment was wonderful for us (family with kids):
Very clean, many rooms and beds, as well as a kitchen with all the appliances/utensils, a 4-person dining table and a living room. There is a also a washing machine and dryer. The portable Wi-Fi was also very useful.
The apartment has an excellent location, very close to the subway station (3 min walk), and to grocery stores. It is in quiet alley close to a main street.
May and her husband were very helpful when we arrived to Tokyo, and upon our return, by escorting us from&to the large Shinjuku train station. They also filled the refrigerator with water and soda bottles, and candy for the kids. They very responsive to our needs, and quickly fixed the internet problem (within hours).
I highly recommend staying at May's apartment when visiting Tokyo! It would be your home away from home.