I eat a lot of Chinese food. I mean a lot. I have eaten it all across Canada; eaten it all across China, and if there is one place I can guarantee a good Chinese dinner this is it. There are so many good things about this restaurant it is hard to know where to start.
The day before you are going to eat there I would recommend you call ahead and order the winter melon. I believe last time it cost around $40 for a medium/large melon. This melon is steamed and inside is a soup with seafood and vegetables. The best part if you can eat the bowl afterwards! It is the perfect starter for any meal, but you have to order it the day before because it is so hard to make. If you have company or are entertaining they are guaranteed to be blown away.
I also recommend the stuffed chicken. It also needs to be ordered the day before and I have no idea what the chinese name is, but it's a culinary wonder. They basically debone a chicken from the inside, stuff it with rice and things and then stitch it back together.
The service at Maple Yip is great. In fact your longest wait is waiting to get a table! In typical Chinese fashion all the dishes hit the table within moments of each other. My personal favorites are the mixed seafood in a taro bird's nest, deep fried pork chops, stir-fried vegetables and Garlic, salt and pepper squid and the best mei-cai kou rou in the city. The name translates terribly to preserved vegetables with pork belly. But think bacon, cut thick & slowly braised in soy sauce, served on a bed of cabbage that soaks up the juices and fat. All I can say is "Hell Ya!"