I went Mother's Dumpling for New Year lunch. And I came back to the same restaurant next day! Because I loved their food.
Personally, dumplings (esp. steamed) were the most tastey ones, followed by pan cakes (Chives and eggs filled pancakes!). Steamed Buns were fine, I like them, just they weren't the best. Don't try sesami balls! I wanted to have hot-hot one, and my expectation turned into dissapointment :-/.
It's a busy restaurant. It may be because of that, they didn't track our order properly. They forgot to serve a rice, a noodle and so on. So far, they haven't overcharged, but I have to be careful around what I order and what I have on my table. That is why I dropped one star.