But they are not really high end, as 20 CAD would be enough for one perosn. The service is also kinda rude, just like many restaurants (actually I mean 酒楼) in Hong Kong. I don't mind it though, as long as their foods are good.
Some big canton restaurants here just require 15% mandatory tip, not an default option that you can deselect. Plus the 13% HST, you are basically paying about 130% of the listed price.