Pros
Booz Allen Hamilton is known for providing great service to their clients. This is accomplished mainly through the hiring of highly competent, experienced professionals. 99% of the personnel at Booz Allen Hamilton are top notch performers. There are excellent opportunities to garner all sorts of experience and to move around internally and geographically within the company. They provide very good pay and benefits in order to maintain the talented people they hire. I've had job offers making considerable more money at other companies and have turned them all down to stay at Booz Allen Hamilton - they're that good.
Cons
Some complain that the annual assessment you receive is too time consuming It typically can take 5-10 hours to complete and it's supposed to be done on your own time (but is optional). Booz Allen Hamilton spends a lot of time and resources conducting assesments and I feel it is a terrific process.