We went to Pearl Liang yday. We absolutely loved the dim sum. Highly recommended.
The roasted duck and the char siu, on the other hand, were rather mediocre (Hung Tao, Goldmine, or Four Seasons offer better roasted duck and char siu)
But the dim sum was excellent. We especially liked the Shangai dumplings, the sesame seed prawns, the scallop dumplings, and some other pork dumpling (name?).