My coworker (who's from Shanghai) recommended this place during a business trip, and she's super-picky when it comes to chinese food. That was my first experience trying these shanghai-style "soup dumplings". While I've had it a few times since then, I gotta say I'm yet to find a bay area restaurant that can do it better.
Tried the other dim sum items as well as some main dishes, and they were pretty good as well. I particularly liked the fried pork bun, sizzling beef plate, and chicken w/ peanuts. Service is not great, but no worse than most "authentic" chinese restaurants.
This is definitely one of those places I'll definitely keep coming back to whenever I'm in town.