I stay at the Monaco about twice a year when traveling for business. The staff are always pleasant and helpful. The rooms are small but very comfortable. Morning coffee service and afternoon cocktail hour are welcome amenities. The exercise room is small but open 24 hrs/day. The location is near the metro so there is easy to access to the hotel from National Airport.
During my latest visit I arrived late Sunday evening and ordered a sandwich from room service. Unfortunately, the sandwich sat too long and the roll was soggy and the fries were lukewarm, disappointing and expensive.
I highly recommend Monaco for the business traveler.