Centurion lounges never disappoint.
This one is located at gate D1, a bit out of the way from the other gates.
Definitely worth the train ride if you have time. Platinum cardholders can bring in 2 guests. Excellent food if you happen to go during their dining service. In between those times they have snacks. The bar is always available. A great place to get away from the noise and crowd to unwind before or even after a flight. Clean facilities and friendly staff.
The only disappointment is there isn't more Centurion locations in the US--AMEX PLEASE MAKE MORE CENTURION LOUNGES!