Unlimited free food and beverages (restaurant quality at The Centurion), free WiFi to do some work, and a clean relaxing space to decompress a bit or even shower before a flight.
Will never pay $18 for a mediocre airport sandwich again.
By 2018 or so, I often began avoiding the Centurion in favor of Delta lounges just to have some space to myself.
The only thing better than executive platinum status is not having to get on another f#cking airplane.
But I am actually using every penny of the airline, Uber and Equinox credits ($200 + $200 + $300) so it’s effectively free for me and all the extra benefits like lounge access are icing on the cake.
Lounge access is only good when it's not full of people who just pay for a credit card. I'm quite fond of the Cathay, Swiss, and Lufthansa first class lounges. Centurions have gone completely down-hill since the Platinum got popular.