After three or four visits, Flocon has joined my top tier of coffee spots alongside Tunnel, Couteau, and Myriade I+II (Pikolo is still uncontested in first place). As other reviewers allude to, this is a third wave shop: the coffee is bright/astringent/sour/bitter (the choice of adjective seems to betray one's overall feelings on the third wave).
If you like beards, tattoos, cardigans and skinny jeans, you will swoon for the pleasant and professional staff. A little bit of Mile End on the Plateau's main drag.
The seating is limited to two large tables with ample extension cords for laptops. On a weekday, one rarely feels self-conscious about occupying a seat to do work - a lot of their business is carry-out and the place is rarely full (weekends are busier). But be considerate and don't cross that crucial 2-2.5 hour line without ordering more stuff...