I'm a big fan of Crazy Mocha, and I'm glad Pittsburgh has such a nice chain of coffee shops that's not Starbucks. I also have a fondness of that Strange Goat Mascot. as a non-coffee drinker they have such a great variety of drinks that I can enjoy (Italian soda water with so many flavor options, great hot cocoa, Smoothies) and it's pretty affordable as well. Their biscotti selection is HUGE and tasty and they have a nice selection of quick grab and go sandwiches. There's ample spots to sit and there's brochures of so many events around Pittsburgh.
It's located in front of many Bus stops and the Wood street T station, so very convenient.
So far I've been to the Station Square location, Squirrel hill location, this one and the Market Square spot. This one is my personal favorite.