I did a job for a client right in Coral Gables. It is called "Pasion Coffee" (http://pasioncoffee.com/
). Their focus is coffee from the Americas and they serve 11 espresso blends, all American coffees. Yes, even a JBM with 80% Genuine JBM in the blend.
If you go there I would appreciate an email from you on your evaluation of the store and their product. Kinda like hoping they are doing it right, but a little concerned that 11 espresso grinders with 11 espresso blends is a tough thing to execute well. But, being that they are in an area like Miami, it could be working well. I know they are selling a lot of coffee.