Except that, in general, crowding at the Centurion Lounges is on average about the same as the worst I have ever seen at a DL, AA, or UA lounge. I.E. crowding at Centurion Lounges is much worse than DL, AA, or UA.
Where? I have been at DFW at all time of the day and night and have never not able to find a place to sit. Vegas no problem, IAH no problem.
I have been in DL in SLC standing room only several times.