Visited Pittsburgh over the Memorial Day weekend. It was my first time at the Galleria and I found it to be very nice. It was definitely a higher end mall, very clean and not too large. I enjoyed Anne Taylor, Anthropology, and Restoration Hardware. Although, I just browsed through those stores.
I did make purchases at Charming Charlies... a favorite store of mine. I was actually quite surprised to find the inexpensive accessories/clothing store in this mall.
I also ate lunch at Mitchell's Fish Market and it was delicious. Highly recommend eating there for lunch, it's not too busy and affordable.
I would come back here to shop.