Great location where Roppongi is steps away but still in the residential area that it is quiet at night time. All the Star Wars gadgets were fun to look at (my 2 yr old freaked out with the 3D Darth Vader).
Few things to note, it is a walk up and there is no lift in the building (although it is on the 2nd floor). If you are traveling with huge suitcases like us, be ready to sweat. There are no AC units in one of the bedrooms and in the living/kitchen area, so if you are not into leaving your doors that connects the bedrooms open at night time, be ready sleep in a 40 degree sauna in the summer time. Also, the apartment is running on low voltage so the breaker can go with aircons, microwave, and lights all running at the same time. The breaker in the room will not work, and you must go downstairs to find the power source.
Otherwise, pretty spacious and most of all, great location.