For a weekend dim sum with your family, Swatow is definitely one of the better choices. There is buffet dim sum as well which starts arnd 3pm. But before that, they sell dim sum by ala carte. If you are not a big eater, ala carte is good enough. The dim sum here is satisfyingly good and fresh and the atmosphere allows you to enjoy the place even more. Be sure to be in queue for at least 15min during the weekends! But it is definitely worth the queue.