Pros
Stable company with conservative business mindset. Tremendous amount of expertise throughout the firm provides good technical growth for employees. You will become an expert in your field of choice due to the training and mentorship here. There are some of the best and most talented people in the engineering industry working here.
Cons
Business development is valued most over all else. If you do not want to or have aspirations to grow business development skills you will be devalued over all those who do excel in business development. However, this is contrary to what is preached by the firm that all career paths are valued. In some departments disproportionate favoritism by upper management is practiced which promotes low employee morale. No defined or published path to follow to move a career into executive positions. Yet many do move up into executive positions somehow.