The Bar/Lounge at The St. Gregory Hotel
The St. Gregory Hotel's bar/lounge is endorsed by professional travelers. Of the 5 professionals tracked on TripExpert, 3 referenced the bar/lounge, including Lonely Planet, Fodor's and Star Service.
The St. Gregory Hotel 
Lonely Planet
Fodor's
Star Service
Lonely Planet "Rooms are smallish and wi-fi costs $12 per day, but that can be overlooked if you're keen on having Dupont's bars and bistros a short stroll away, and if you score a deal (the property often appears on discount booking sites)"
Fodor's "The contemporary lobby, which sports a sculpture of Marilyn Monroe, connects to the M Street Bar and Grill"
Star Service "Club rooms on the top two floors no longer feature access to a private lounge—the lounge has been converted into another suite"
