It's an apt with an original design, the kitchen being right at the entrance, which actuallys makes it like a very large studio with a small kitchen inside which you can cook but not eat. I kept its door closed at all times because otherwise the AC couldn't really heat up all the space; as a result the kitchen, bathroom & WC were pretty cold.
I thought the noise was going to be a problem at first, but eventually I just slept like a rock when the jetlag hit and got used to the noise after a week. Japanese houses have minimal isolation whatsoever and now matter how thick the walls would be, the noise would go through the AC hole anyway.
The station is close but Keikyu isn't that good except if you plan to visit Yokohama a lot. For Tokyo, you would transfer at Shinagawa, pay a higher fee and get mixed with the people going to the airports.
There is also a small shotengai with a nice izakaya "Ippachi".
Overall the apartment was way nicer than its surroundings and the staff was so nice!