The room is very small for two people, even for one person actually. We had a hard time opening our big luggages because there’s no ample space for your things. Shower room is smaller than the usual shower room in Japan - i kept on bumping my elbows in the wall while taking a shower.
The only pros are - nice view of the Skytree and clean. But overall, we didn’t have a comfortable stay because of the room size.