I hit the expo on Thursday, right when it opened. The parking was kind of a mess, they redirected us twice before we just decided to park on the street, about .5 miles down from the armory.
The expo itself was well organized. I was placed in the wrong corral, but the corral switch table was easy and they gave me zero hassle on moving up to corral 2 from 7 (I had registered almost a year prior). The vendors were great.

Race day i got there around 6:30. I was with a few friends who got the bag drop, which was well organized then hit the bathrooms. I was shocked there was only one row of portapottys. They really should have had more. Fortunately we were there early enough we didn't have to wait long. We got in our corral by 7:15 since we were close to the start. By 7:33 we were off. I was incredibly happy to see it wasn't too crowded at the start and we didn't need to do much weaving.
The blue mile was followed by a beast of a hill that knocked my pace down nearly a minute (from holding 7:20s to a 8:15 mile on that hill). The rest of the course was rolling hills through the neighborhoods of DC. Very pretty and great crowd support of residents and spectators.
The finish line was another minor uphill, but I still pulled out a 1:39 to finish. The bag pick up area, beer tents and metro back to our car was all incredibly easy. The metro situation was fantastic. We barely had to wait and there wasn't any waiting for several trains of people like I had heard it had been in past years.

I would definitely recommend this race!

Link to this review