This apartment exceeded all our expectations -- we could not have been happier with it. My wife grew up in Japan, and I lived there 10 years, and we were shocked at what a great place this was.
The location is ideal. Right on Cat Street, well-known as one of the best and most charming pedestrian shopping streets in Tokyo. Great restaurants all around. Easy access to Omote Sando, Meiji Jingu shrine, Yoyogi Park, Nezu Museum, and downtown Shibuya.
The apartment itself is spacious, clean and well-appointed. Beds are big and comfortable. Shower room is divine. And of course, the highlight is the huge deck. We did yoga and picnics on the deck. We also have a 10 month old baby who loved having all that space to crawl around (the railings are narrow enough that there was no risk of him squeezing out).
The hosts were super responsive and accommodating.
We hope it's available next time we visit.