I'll make this one quick and easy.
Ambiance is ok. Too small and tight. If there are more than 4 or 5 tables full, get ready to listen in all your neighbor's conversations.
Décor is nice. Lots of old pictures of Calgary and some interesting art. Music is eclectic but it can become a little too loud, especially if your under the speaker. The fresh flowers on the tables is nice.
As far as the food, we have only had the Dairy Lane Burgers so far and they are amazing. You can taste the difference that quality grass fed beef has. Juicy. Tender. D-Lish! They actually use organic red (not white) tomatoes which is great.
The fries however, not so great. They use Kennebec potatoes. These are supposed to be the best possible potatoes for french fries. If they are, then they don't fry them right. They are too soggy. We asked for crispier ones the next time and they were still the same, soggy.
I decided the following time not to order the fries with my burger but I was still charged for something I didn't like or want.
All in all, a good place to try if it's not too crowded.