I find the 61c in squirrel hill to be something of a tragedy.
The indoor space is great, the outdoor patio is right on, the crowd is always good, the staff are cool-yet-friendly, and the pastries are probably the best of almost any other cafe in Pittsburgh.
The tragedy? Their espresso drinks suck.
Every now and then when buying one of their righteously decent croissants, I decide to give their cappuccino another try. I've always been disappointed.
Stick to brewed coffee while you soak up the place and their pastries.