I often frequent the Artisano in Etobicoke, which has become an extremely popular place.
The one in Oakville hasn't taken off nearly as much, which is too bad because their food is great too (all their bread is baked on site...at least it is at the Etobicoke location and I imagine the Oakville one is the same). Their menu has a wide variety (pizzas, pastas, cold sandwiches, hot sandwiches), and I've noticed better deals at the Oakville location than the Etobicoke one.
I like the system of ordering at the counter and then choosing my seat. It's like high end healthy fast food in a very comfortable environment.
I've gotten excellent service every time I've been there. I even celebrated my birthday there one year (long story) and they were great about accomodating 20 people and even let us store our ice cream cake in the refrigerator!
I should mention that I've always been in the evening.