I'll start with the positives. The location is very convenient for getting around Tokyo, and hotel staff were very polite. However the other details of our stay were infuriating. To start, the room was MUCH smaller than the pictures that Hotels.com uses to advertise the hotel. This is of course not the hotel's fault, but the room was literally just barely wide enough for the bed. That said, the room was clean and fairly comfortable at first (see below). Sleeping was difficult because each night there were sirens every couple of hours, and there was no insulation on the window. We were on the 12th floor and it sounded like the sirens were outside our window even when it was closed. Halfway through our stay the hotel turned off the air conditioning and changed it to heat without telling us, so we woke up in a sauna. It was so hot in the room I couldn't breathe and got a bad headache. The hotel staff refused to turn the air back on, and told us to open the window instead. This didn't sufficiently cool the room down, made the siren problem much worse, and furthermore we woke up to a room absolutely full of mosquitoes, since there was no screen on the window. When I contacted hotels.com about a refund for the nights without air conditioning (which is specifically listen as an amenity) they refused to help me. I would recommend staying elsewhere, and booking from a different website, since hotels.com refuses to take responsibility for their listings.