The past 6 weeks at Mickey's place was perfect, I wish I could have extended the reservation but it was already booked up by the time we decided to extend our trip. The apartment is incredibly spacious by Tokyo standards. I'd say it comfortably fits 3 adults (maybe 4 if you are all very comfy with each other) or 2 adults and 2 kids.
We did experience a little bit of noise like other reviewers mentioned, but nothing out of the ordinary for a large city. The apartment is above an izakaya and there is the occasional loud voice or conversation, but the noise never extended past 11pm or so.
I'd definitely stay here again! Thanks Mickey for sharing your beautiful apartment