We visited the Plaza Premium lounge this week. It's super nice. Bright and spacious with a variety of appealing seating areas, excellent hot and cold food options, and barista-made espresso beverages.

We got in as *G traveling on a UA award, flying OS in Y to VIE. This is the lounge OS directed us to at check-in, and we saw no signage at any point indicating that it was possible to access the *A lounge for an E departure.