I had asked this board for recommendations of offal places near Union Station for an overnight visit from NY. My own research had suggested Full Kee might a great option. It was! On arrival and after checking into my hotel (George, whose Bistro Bis did have a sweetbreads salad on its menu but which I didn't get a chance to sample), I went over to Full Kee and loved it. Even the decor -- which DC Chowhounds had presented as minimal -- didn't seem as dumpy barren as I thought it would be. I ordered beef tripe and pig intestine (and shrimp dumpling soup because everyone on the board seemed to think that was a great speciality of the place). Both offal dishes were terrific and bountiful. The only problem was that I couldn't do the work I had brought with me because all the wait-staff kept coming out to make sure I really wanted offal and then to make sure I liked it!! The dumpling soup was great too but not necessary with all the other stuff I had.
The next day I was in a rush and went there for a quick take-out of pig tripe which was good but not as good as the others. The pig intestine was my favorite.
A great place. Too bad they don't take credit cards.