Criteria for corner store greens
Based on my experiences:
Nice looking store? Irrelevant. Beans from a dark, empty store where the owner crouches in the back can be good.
Nicely bagged greens? Irrelevant. Beans from the bottom of a barrel can be good.
BUT store owner knows the provenance of the beans and proudly states it (and the body language backs it up) EVERYTHING
I am thinking a Yirgacheffe smackdown might be interesting. Desta, Piassa injera, Kullubi, Gerrard St near Carlaw, Amedae.
Of course some or all may come from the same place.