You should come with someone who is Chinese on your first visit because T.Pot is so popular with the Chinese communities in the area that it is total chaos at all times. There is no downtime at T.Pot and for good reason.
It's not the prettiest or cleanest restaurant in Calgary but it ticks all of these boxes for a Chinese one. You get two choices of service: there is the "catch the server as she passes by" or "forcefully waive her down from afar" cafe side. Or the "bit more calm but you still have to tell them what you need all at once" restaurant side.
Unfortunately there are few choices better in the area, or even in Calgary, so make mental preparations for chaos and be adventurous when you visit T.Pot.