Try the Pittsburgh Eggs Benedict! I'm honestly not a huge pierogi fan, but I figured it would be authentic, and it was. The dish consisted of two over easy eggs, hollandaise sauce, over sauteed onions, kielbasa, pierogies and italian bread. Everything melted together perfectly. I also got the home fries, which were soft in parts, crispy in others.
As for atmosphere: service was good and it was a no-frills diner- bright lights, simple tables/booths, etc.