Choices is both the most convenient and the most delicious Vietnamese restaurant within the downtown proper (Chinatown not included). It is located in between the two plus fifteens of Bow Valley Square, which means that most people don't even need to go outside to reach it.
There is both a takeout counter and a dining room. During lunch both are swamped, BUT they are super quick and efficient so you are always seated or given your food within a matter of minutes. They know that their audience is mainly stressed out professionals with no time for anything.
The dining room is pretty utilitarian, but it is nice and clean. They get you in your seats quickly, get your orders super fast and have your food out to you in minutes. They definitely maximize their turnover.
My favourite dish has got to be the Chef's special, a vermicelli dish with imperial rolls, special sauce and chicken. It is delish, and rings in for under ten dollars including tip. That's pretty good for the core! Lot's of other great stuff includes the fresh pho and the crispy noodles. Everything is fresh and seems relatively healthy so my approval is always on go!
This was a favourite of mine when I worked close by.