Pros: The people are great. Everyone -- even the difficult types -- are eager to work and excel. There are some senior officers with questionable morality, but most people here are great people to work with.
Cons: 1. Federal clients. Don't forget that you'll move at their pace, not yours. 2. The nature of the job means that sooner or later you'll be strategizing ways to get more money from the client (i.e. federal government), regardless of whether or not you'll actually add value. BAH runs on government money, a large chunk from DoD, and thus is part of the bigger problem we have in this country with fiscal responsibility. 3. Living off the American taxpayer. Much of the money that flies around in DC is at the expense of everyone else everywhere else in the US, BAH is a major player in this system, particularly the defense technology sector. 4. You'll never get paid what you're worth. The three lowest ranks (Consultant, Sr. Consultant, Associate) seldom make what they're worth, while senior management (looking at you, officers) make insane amounts of money.