Pros
Flex work schedule is good, means you get every other Friday off. Public transit stipend. Nice new office building directly at the Suitland metro stop. Lots of interesting, professional, and nice people if you make the effort to meet them. Good cafeteria. Work hours were stable (no forced overtime)
Cons
I was able to finish most of my work by lunchtime, and there was no opportunity to take on additional work or learn about functions of other departments. I asked repeatedly for more things to do, and supervisor told me directly that she was unwilling to give me more work or let me learn from a different department. Pay was appropriate for the amount of work and skill needed, which means it was very low. The office building had a fence and a huge land moat around it to separate it form Suitland, which is not a pleasant or safe area (like much of southeast DC). So there was a long metro ride every morning and evening.