We had a large 1-bed executive apartment.
Brand new, large living/dining rooms, king bed, large bathroom with walk-in shower and bath tub.
Plenty pf space. Fully equipped kitchen.
Washing machine/dryer has to be requested prior to checkin as not all room have it.
The place: 23-rd floor and up of modern office building. Downside is, except underground, the neighborood is very quiet (dead), no restaurants, no shopping immediately nearby - but Otemachi is on 4 subway line, just below the hotel building, and Tokyo station is a 10-min walk.