This is the Club lounge of Novotel Seoul Ambassador Gangnam, recently renovated (and extended). It is located on the 16th floor. Very pleasant with nice view on the city. You can check-in/out from the lounge.
It is open from 6 am to 10 pm. The happy hour for drinks and snacks is from 5 to 7 pm. As it is a Novotel, there is of course not as much choice as in a Pullman or a Sofitel during this happy hour time, but this is very acceptable !
You have soft drinks, beer and wine (1 red, 1 white) and of course coffee/tea. Limited but nice selection of canapes, cold cuts, cheese and a few warm items.
Unfortunately, since my last visit (2 years ago), there is no more breakfast served in the lounge
and you have to go to the main BF restaurant on the 2nd floor, where is served a great buffet. This is the only « negative » point I have to mention.