Want to know how much I love Pittsburgh International? My family and I, before the laws implemented after 9/11, used to go to the airport to shop and hang out for the day. It was like a fun little trip for my siblings and I when we were little. No, we weren't going anywhere, but it was still fun!
As an adult, I still hold this airport near and dear to my heart! Since being demoted from US Airways-hub status, the airport is a lot less busy these days. I don't mind, though! There are rarely long lines, the people are SO friendly (unlike at most airports, they don't hate their lives), it is clean and there are some unique dining and shopping options. The Air Mall has NO markup for their pricing and has stores like Clinique, Sunglass Hut, Gap, The Body Shop, Nine West, amongst many others.
The airport is also VERY easy to navigate! Woo Pittsburgh!