I like the quaint, cozy atmosphere in St. Martin's Table. The staff is always friendly and helpful. I also love how much of the proceeds go to charity and that the place is non-profit.
The food is simple, tasty, fresh and cheap. I usually get a cup of soup and a whole sandwich combo for $7.50. The soup is often times heartier than the sandwich; I particularly like their chili, or their curry soups, while the sandwich is just basically sprouts and a tofu or bean spread on top of fluffy bread. That said, it hits the spot, and it's usually hard for me to decide between the flavors for their spreads and soups (they usually have two vegan soup options and two vegan spread options).
Sometimes they have a vegan dessert option as well. I wasn't expecting much, but the mocha chocolate cake ($3.75) I had was spectacular---it was unusually moist, fluffy, soft and rich. The mocha flavor was oh-so-subtle. It was easily superior to anything at Hard Times, Seward Cafe or The Wedge. In some respects, I think it was better than even the turtle cake at French Meadow.
If St. Martin's had one or two killer vegan desserts daily, and also a mockmeat sandwich, I'd be there all the time, as the atmosphere is great, the prices are good, the food is fresh and light, and the mission of the cafe is pleasant and inspiring.