I tried out the Sterling location for their empanadas, croquetas, a cubano, and a couple of desserts.
The great news is that the empanadas are the bomb. They are small but awesome. Probably made with a lot of lard. $2.75 each, but I went at Happy Hour (4-7pm) when they are $1.50. Ground beef or ground chicken, both look a bit boring, but the taste is the opposite. Ground beef has the taste of olive and raisin in it without any visual cues. These rocket to the top of the DC area food chain, not just for empanadas, but for anything.
The croquetas are excellent, but quite a bit different than what I normally expect. They have a breading which is barely there, very fine and light. Exceptionally well fried, greaseless. The ham is essential. The mushroom is sloppy to eat, but very good also.
The cuban sandwich here is quite good, though I can't get out of my mind the spectacular one at the now-defunct Fast Gourmet in DC.
I tried a couple of desserts, but I would pass on those. There is a tres leches which is powerfully sweet, and a dense bread pudding which is dull as a doorstop.
I did not try the pasteles, will save those for the next time.