Great unit, but 4 would really be a squeeze. We were supposed to be 3 which would have been cozy, but for just 2 was ideal. Clean unit and washing machine a big plus.
Short walk to Hiroo Station and lots of bus service. Cautionary note - to get across Meiji Dori (Meiji Street) there is a pedestrian bridge so be warned if you have lots of luggage.
Great bakery (Truffle) near entrance to Hiroo Station!