Sounds like Jianxinyuan (建新园) on Baoshan Jie (宝善街). But that is closer to Nanping Jie pedestrian mall than Jinbi Guangchang.

Though technically part of a chain, this one is far and away the best (and original, I believe) though I think waiting 2 hours is clearly an exaggeration. Tiny seating area so at meal times there is long lines and no where to sit. I often go mid-afternoon with no wait and plenty of seats. Or if you get Across the Bridge Noodles you can eat up stairs.

Nanzhao thank you.

neddy can't possibly be talking about jianxinyuan. That place is ok, I eat from that chain all the time. Even the original is just ok. Two hours is a huge exaggeration, more like ten mins.