My wife and I specifically went to Jimmy Wan's to try the Shanghai Soup dumplings. We had been to China earlier this year and had some unbelievable eats; so we came here hoping to find something close to the what we had in China.
Let me just say that we were pleasantly surprised and since our first visit we've been there three more times. The dumplings are about 50% larger than what we had, but the taste is very close to the original. You'll find that you may need more than 2 bites to get them down. The Jimmy Wan's House dumpling is also quite good. If Dim Sum is what you're after, they offer 25% off on the weekends before 3PM.
If you like Sake and Sushi, you won't be disappointed with the lengthy Sake list and fresh sushi.