L'Avenue is one of my favourite Montreal dining experiences. Judging from the line up I waited in, it's also a favourite of many others. They offer delicious food for every meal, including a coveted breakfast and delicious and creative lunch and dinner options. I was especially enamoured with their sesame and tofu salad. Unfortunately, the veggie burger was a bit mealy and bland.
I would also imagine this is one of the cooler places to go in Montreal for food. Even their weird heavily curtained entrance seems to shun the outside world. The lighting and decor is awesome, especially in the bathroom. It basically feels like a red lit cage with various art on the walls and intense movies playing on a TV in the wall by the sink (Party Monster was playing while I used the facilities). On that note, if you take kids here, you may want to make sure they pee before arriving.