Hong Kong Bistro Cafe is a HK cafe (cha chaan teng) located in downtown Chinatown. Living in Scarborough, there are tons of HK cafe options in Upper Scarborough and Markham but surprisingly not many downtown that I'm aware of.
HK cafes (cha chaan tengs) serve low cost Canto-Western cuisine and this is a result of Britain's colonization of Hong Kong and as a result it ended up impacting the food served.
I have been to a Hong Kong Bistro Cafe a few times and dropped by recently on a late Friday afternoon during the holiday season. I ordered the lunch special which was a baked grouper in a tomato sauce over a bed of spaghetti, it also came with a soup (choice of Chinese soup, cream soup and Russian Borscht which is essentially a tomato soup) and a HK milk tea for $8.50 plus tax. The spaghetti was pretty basic but the baked grouper was cooked perfectly, really well done. The Russian borscht (tomato soup) soup was basic and the HK milk tea was above average.
Hong Kong Bistro Cafe is a pretty good option downtown if you are looking for a HK cafe and really reasonably priced and service is pretty fast. The food won't blow you away but it's pretty good and the portions are pretty big and fulfilling especially for the price point.