Peach Garden has good customer service. For the dim sum, what they did was that the staff came around with trolleys serving dim sum right to your table. They also made it a point to refill our tea cups. There was also a buffet area, for varieties like fried tofu, noodles and congee. It could be self-help but there'd also be staff to assist you.
For dessert, there were cold ones like ice-cream and fruits, hot ones like bobo cha cha.
Keep it up!