The Club lounge at ATL airport is located at International Terminal / Concourse F. It is on the Mezzanine level next to the Chapel.
It opens from 6:00am to 9:30pm. The lounge is big and there is a nice big bar there with a wide variety of liquors. However, you have to pay for alcoholic drink. All soft drinks are free. When you walk in the lounge after check in with the receptionist, on the left side, you could find some seats in this small area and it is more private. On the right side there are a lot of seats and the food located far right of the room. There is a shower at this lounge but you need to ask the lady at the front desk to have your name put on the list. They will let you know when it is your turn to use it. Overall, I really like this lounge a lot even though there was not a lot of food available but with a big space and nice atmosphere made it all better.