Working at Queen and Spadina I couldn't have been happier when Dark Horse opened. I was getting really sick of Le Gourmand's coffee (I honestly think people enjoy LG more for the cachet than the actual quality of their coffee, which pales in comparison to DH)
These guys really know how to make a coffee. Lattes are always served with a rosetta (or sometimes a heart) and espresso's have great crema. My new favourite is the mocha latte which uses dark chocolate so it's not overly sweet. Decor is awesome with original wood pillars and an open atmosphere. Conference style tables in the front are great for impromptu meetings and the more intimate back has individual couches and chairs for lounging.
I always love coming to this place and highly recommend it.