They really love making (and talking about) coffee. It comes through in their espresso, which is hands-down the best in the entire Boston area.
Third wave coffee at its most Cambridge-ish. Great rotating selection of single origin espressos. Nice big open windows looking out on to Kirkland Street. Beans roasted in-house
Great mocha, pay with Square, and pour over coffee. Feels like Sightglass in SF except Dwelltime has free wifi.
This place has AMAZING hot chocolate. Iced mochas, too (for some reason better than the hot mochas).