I finally went to Black's in Bethesda for lunch the other day. I had the pork cubano sandwich and mixed greens instead of fries. It was just heavenly, especially with the peach iced tea. The bread was crispy-crunchy and it was warm all the way through. I couldn't believe my luck. Often with such a thick meaty sandwich there's a cold pocket in the middle.
The construction noise, by the way, is somehow shut out by the roof of the patio. Far louder was the neighboring table. :)
I just looked back to the January thread, so thanks to JoyS and Joe H. for the recommendation. It was worth the trip.