I decided to buy a membership to the Red Carpet Club. Premier members receive a small discount.
There are a number of clubs through the country and internationally.
Now that I'm travelling at least one time a week or more, it seems somewhat helpful. If I don't use it much, I'll see if I can cancel it for a refund (would they do such a thing?).
My primary use is the desk and electrical connection to work while recharging my equipment. I had a four hour wait between flights.
I do question whether enough airports will have red carpet or reciprocal lounges to be meaningful / helpful. Most US major cities as well as most European major cities are covered.
Feeling ill this evening, it seemed like a nice place to relax.
The most important question: is the rest room nice and clean?