I stayed as a couple. It was the right choice as a business hotel that was close to Tokyo station, had a short distance to carry luggage, and had a spacious room.
You can put your luggage under the bed, so I think there is quite a lot of space for two people. The bath seemed small, but I was satisfied that it was clean enough for this class.
The double bed was big and clean as well.
Breakfast is only sandwiches, so if you stay for a long time, you may feel unsatisfactory. However, I think that sandwich is definitely the most delicious sandwich I have ever eaten. In addition, the front desk was very polite and responded to all our requests. I was convinced that it was the HOTELMonterey Group. Since I was staying for a long time, I sometimes used the washing machine, but I think that the two facilities are not enough for the number of guests. (Since most of the customers are business travelers, two may be enough.)