The Bar/Lounge at Ambassador Seoul - Pullman
Grand Ambassador Seoul's bar/lounge is endorsed by those who travel for a living. Of the 3 publications tracked on TripExpert, 2 referenced the bar/lounge, like Star Service and Jetsetter.
Ambassador Seoul - Pullman 
Star Service
Jetsetter
Star Service "Luxury floors composed of Deluxe and Executive rooms enjoy complimentary access to the Internet plus a private lounge for coffee and evening drinks and snacks"
Jetsetter "For starters, you could take a tour of the city in the traditional han-bok, view the city from the top of Seoul Tower, or indulge in lip-smacking Korean barbecue"
