The review above is from 2015. I would neither call the T4 Sky Club "ghetto", nor consider it's food options "paltry". Haven't been to the Wingtips lounge, but I doubt it's all that much better. Are you flying in business? I suspect you won't get into Wingtips if you are in coach and are still in challenge period for DL Platinum (and you don't have Skyteam Elite Plus status from another carrier).