It was decent, not the best as I've had the same at a number of other places in Markham too. Like someone said, most Chinese restaurants serves this dish.
I would return to Dayali though as their presentation was really good, and the duck was adequately served with proper timing of the meal so that it doesn't overwhelm you. Mind you the only time I tried it was just myself and the hubster, which means we could hardly finish a whole duck to ourselves. Even reheated at home the next day the meat was still moist and tender.