Pros
Strong culture with emphasis on respect, collegiality, diversity, and productivity. No drama, no yelling, no abusive bosses. Strong focus on development of technical skills, then development of business development skills and strategy. A great place to hone one's professional skills, see how an efficient corporation works, and develop consulting skills. Competitive compensation, especially for junior staff.
Cons
Booz can be a very demanding place to work, and very stressful during government proposal season. Life/work balance gets some lip service, but most people who are getting ahead at Booz live for their jobs, and are very focused on doing what is right, pleasing their bosses, and being subservient to clients. I think for most people Booz is not a fun place to work. It can be very serious, cold, and impersonal. With staff dispersed across government client sites it can be very challenging for staff to stay connected to their managers. It is also common within Booz for people to be very hard working but not get recognized for it.