I got a room on the 14th floor - very nice, clean, with options to have my towels changed, or everything changed, or nothing changed over the 2 days I stayed there. I did not mark "quiet" for the property in case there are people who would be very annoyed by the sound of the trains immediately next to the hotel - but I must say it was softer than an AC in many American hotel rooms I have stayed in. I had no trouble sleeping.
The staff was very helpful - held my luggage for me when I went shopping.
It is 4 minutes by walk from the Yokohama train station - which I used extensively (to get to the hotel from Haneda, and back, to get to Kawasaki and back ...
Lots of food options nearby!
I would definitely stay there again.