united polaris rounge at washington dallas airport

I used it before my flight from Washington to Narita. It was very clean and even though it was morning, there was a large buffet menu. There is a separate restaurant where you can eat. The photo shows shrimp bisque and a Polaris burger, which were very delicious! Rather than eating the in-flight meal, it might be better to have a leisurely meal here before boarding. There are only a few Polaris lounges, and they seem to only be available to long-distance business class passengers. I would like to use it again if I have the opportunity.