Booked last minute as it had decent price, the location is great, walking distance to several train and metro lines making access to other parts of Tokyo easy.
The room (we had the room for 3) is relatively big in Tokyo standards, the bathroom is very small. You don’t come to Tokyo to stay in the room so it was OK.
The service is efficient, they don’t provide information unless you ask.
We stayed in the east wing, so if you want to go to GYM or laundry room you need to go down, access main building and go up.
The laundry room -the waiting area is really nice, but, they have only 8 machines and about 650 rooms, the machine is up to 3 kilos but people put more and then dry it for hours as result I needed to wait until midnight to get a machine then the course of wash and dry takes 2 hours, it’s not their fault but they could add more machines or control the usage.