I travel a decent amount for work so mostly utilize the lounges on my trips back home, not so much on the outbound trip (I’m based in SAT). If I can dip out of my last meeting a few hours early and then hit up the Delta Sky Club or Centurion Lounge to knock back some free beers or cocktails I’m definitely doing it. With security lines at many major airports a crapshoot pretty much each trip, I typically plan on getting to the airport at least two hours early, giving me plenty of time in case there’s a delay. At worst I spend a little more time in the lounge than originally planned.
Sky Club is also great because it’s one of the few lounges you can actually utilize after arrival in your destination (not just pre-flight or during connection). This is great if you’re meeting someone at the same airport and their flight arrives a little while after yours (or is delayed) and you have a relaxing space to sit and wait (with aforementioned food and beverages at your disposal).