During my month long stay, I found myself eating at Quynh's on four separate occasions. Each time, I was greeted with courteous staff and excellent service. I will be out in Calgary again soon and will definitely be returning.
The pho broth is on par or better than most and the actually noodles are so right that Goldilocks would approve. Other offerings like the spring rolls and grilled meats are definitely tasty as well.
Slightly more expensive than the offerings at home for me in the Vancouver area, I never felt as though the prices were unreasonable.
If you're in the area, stop reading and just give it a go!