I just had the best XLB I've had in a long time at Red Kings in Chinatown. They are called Steamed Shanghai Juicy Dumpling. Also had amazing Shredded Chicken* with spicy green pepper - very flavorful but not a contest to see how much heat you can endure (Han Dynasty). The only dish I didn't love was the Dan Dan noodles - it has some kind of aromatic that is pretty bitter. We've been working our way through Chinese restaurants in Philly and this is definitely our favorite. An underrated gem.