Check in service until late night even after 12:00, good for late arrivals at Haneda airport. Very close to station where you can get to either Yokohama or back to Tokyo very swiftly. Restaurant nearby open till late night offer a variety of choice if you want to eat at midnight. Overall a very convenient place.
It's 8 min walk from Kawasaki Station. The advantage is taking train from Haneda Airport only needs 30min and save taxi fare.
Lots of restaurants nearby are also good for tourists.