A shattered iPhone screen brought me to the Apple Store in Shadyside yesterday. I was in desperate need of both carbs and caffeine by that point in the day, and the Apple Genius helpfully recommended Coffee Tree just a few storefronts down.
A lot of the complaints I'm reading are valid. The baristas were a bit awkward and the layout is a little odd. That said, my latte was on point and my cookie-- some ridiculous combination of chocolate chip, oatmeal and pretzel pieces-- hit the spot. Prices were fair, I found a comfy chair by the fireplace, and the free wifi worked reasonably well.
There's probably fancier and comfier places around, but this is a solid choice if you're in the neighborhood.