I've only lived in Pgh for 5 months now. During that time, my #1 priority has been to find some decent coffee. I'm used to having Blue Bottle and Ritual coffee in SF.
I've tried a fair share of coffee shops around (both soy latte & coffee bean). I was starting to lose hope. When I tried the soy latte at 21st St- it was good (not amazing). But I was giddy to see a latte art again. What brings 21st up to a 5* is their coffee bean. We bought a 12 oz bag of Kenyan Kangocho for $18. That's expensive but it's amazing. I'm not a coffee critic so it's difficult for me to put into words what differentiates it from other mediocre coffee but the word I'll use to explain it is... 'rich'.