Pros
It's a very demoralizing place where you can do to have your soul drained out.
Cons
I was excited to get hired at Booz Allen Hamilton to manage a team of scientists in a high-powered computing lab. In an unfortunate turn of events, when I got to the work site, I found that I was instead the bottom-rung hourly worker bee in an administrative office with no number-crunching computers, no scientific software, and no database, and that my work isn't actually funded and the contract expires in a few months. I was also not-so-politely informed that my business opinions are not, shall we say, prudent to express. I know it sounds like I must have run over the President's dog, but no, nothing like that happened; it was just one of those bait and switch business situations. I know that they did need my resume in order to try to obtain funding, so perhaps that explains the bait and switch.