It is not easy finding good authentic falafel sandwiches near downtown Toronto. Thank God for Mystic Muffin. The sandwich is prepared with the right ingredients, not just a random plethora of ingredients and sauces so many other places seem to use. I enjoy the lentil soup as well. There are a lot of breakfast options as well and baked goods that I enjoy. I am not someone who is into sweets, so I usually go for the falafel/soup, but if you do like baked goods, go for it.
Elias is as described by many others here. He's efficient in taking and filling orders, but also enjoys talking to his customers and talking in general, so if you're willing to talk or interested in talking, you'll get to know him. He's also pretty funny, so if you sit in and eat, you'll probably hear some jokes.