The last time i was in Pgh Giant Eagle Market District was known as the Food Gallery..
Giant eagle market district is located at the corner of Negley and Centre ave. The outside parking lot is usually full. However you'll be able to find additional parking in the garage located on the Claybourne side of the store.
I was pleased with the store from an aesthetic stand point. The market district is a step above the non market district Giant Eagles. This location offers a larger selection of ethnic , organic foods.
The employees are little nicer but customer service is just ok. Not good or bad but ok.
If you don't have a customer loyalty card you won't be able to take advantage of savings. Competitors also have loyalty cards but price markup appears to slightly more than what I would have payed at a comparable store.
However I'd consider shopping here for speciality items or for convenience.