I was there 9/6 around 4:00pm and it was less than half full. Agree it isn't very good but I was flying standby and it was close to the gate.
roger, thanks. ATL-YYZ showing a D concourse departure at 730pm. It's either pop into T SkyClub after clearing TSA, or go right to D concourse.
I assume E and F Clubs will be jammed, and I don't really like duplicative plane train rides at ATL just to chase the "better" lounges these days; its a fool's errand I'm afraid!