I love the idea with a public market in Pittsburgh, but most other cities that have a public market have decades of experience, reputation, notoriety.
The ambiance of the new market circa 2011 when it was at Smallman Street was remarkable. The vendors were packed, the place pulsated with life, and it was difficult to make a path along the walkway a lot of the time. It's current location on Penn Avenue couldn't be more different. It's out of the way from the Strip's main drag and is often deserted, sadly. I've visited a few times on a Saturday, and half of the vendors don't even bother setting up. (As another Yelper described: Tumbleweeds.)
Supporting local business is important to me, but it seems like the location and the bleak ambiance isn't helping any of the vendors there. There's talk of a second public market move in the last two or three years -- I hope it's for the better.