Surprised I have not seen a thread on Fast Gourmet. I travel to Latin America a lot for work, and many of my colleagues (all Latin Americans themselves) started talking recently about a great sandwich place in a gas station in DC. Since I love a good sandwich, I resolved to try it out yesterday.
First, the location -- it's in the "Lowest Best Price" gas station on 14th and W -- no real signage, and from the outside you would think it's a regular exxon-type grab and go place. But, inside they have made a huge effort to make it clean, appealing, and, dare I say, cool, with a neat color sche