I'm from Los Angeles, but visit Pittsburgh frequently. I was on the mission to find good dim sum in Pittsburgh & found it at Jimmy Wan's in Fox Chapel. Before I ordered, I asked about their dim sum & the server told me that they hired a chef from Hong Kong, so it was all prepared in-house and fresh.
What we ate:
Shanghai Soup Dumplings - Delicious and this was the best. Authentic. Definitely get this!
Steamed Shrimp Dumpling - Great
Pork Shu Mai - Larger than a normal Shu Mai and filled with meat. Very good.
Cantonese Rice Noodle Roll - A small portion, but still good.
Steamed Egg Custard Buns - Delicious! Another favorite. They are traditional white round buns filled with a sweet egg custard cream in the middle. Try this one too.
The Good: Jimmy Wan's dim sum is definitely authentic and a great find in Pittsburgh.
The Bad: The only criticism is the price. Most dim sum dishes are about $2-3 in Los Angeles, but Jimmy Wan's averages $5-8 per dish. BUT, Jimmy Wan does offer 25% off dim sum on Saturday and Sundays. Even at a few dollars more per dish though, their dim sum is a great find in Pittsburgh.
There was also a 15-20 minute wait for the dim sum to arrive at our table, which is understandable since fresh dim sum is steamed right before eating.