To be honest, the ratings actually alternate between 3 and 4. There are some dim sum meals on weekends that I would give the freshly made food a 4 star rating. There have been some dinners I've had that would be 3 1/2 to 4. And then there are the late night meals that are 3 at best, with wildly alternating quality and selection (I've walked out a few times because they actually ran out of some of the most basic snacks at night).
This resto is about as close to a 24 hour chinese restaurant as there can be in Calgary, as it's open every day from 8am to 4am 365 days a year. The food is usually pretty authentic, and it's all satisfying sober or drunk. Service is usually pretty good, even despite the odd server or two who passes by with english 101. Just don't expect a lot from the decor or the view, and just enjoy the company and the food.