If you're visiting Old Town and/or the Yuyuan Gardens, this restaurant is convenient. It's also open early. That being said, the food was only okay.
Based on other reviews, we went to the second floor, but only waitstaff was there and they were catching a smoke break. So way too smokey for us.
We ultimately ate downstairs, where you can choose from a wide variety of noodles and dumplings.
For non-Chinese speakers, it can be really confusing: you're supposed to order and pay at the counter located at the entrance. My advice is to find waitstaff near the food counter, point to what you want and they will then tell the person at the counter what you ordered so that you can pay.