I discovered this place when I first moved into the area about 10-12 years ago. I found it to be one of the first of its kinds in Calgary, having been established in 1989.
Their deep fried spring rolls with an ample supply of broad basil for dipping together into fish sauce were totally killer... for several years. And then something horrible happened... they turned bad. Never did find out what happened, new chef or the like ? Nevertheless, they are back to being almost as excellent as I first remembered them.
I still frequent the joint about once every few months for a nice bowl of beef satay or seafood pho. They have one of the best satay's around and yes, without a doubt, their chili sauce/oil is fabulous.
They are obviously a tight little family run unit, and I have observed the women in the front going through several pregnancies each through the years and the growth of their children. I love places like this. Ones that are surviving on solid family involvement, straightforward and reproducible good quality food and a faithful following of clientele.
If you haven't tried strip mall, family-owned, Vietnamese before, then start here. You won't be disappointed and you will quickly find your 'regular' and keep coming back.