Pros
Pretty good benefits, competitive salary. Closed during Christmas while paid for those days off. The company is flexible in terms of taking vacation days.
Cons
No innovation at BAE. You will simply write the software that you are told to. There is no room for creating new products or prototyping new ideas. Depending on who you work for it can be a good or bad experience. Some projects exists in a secured area so the use of Open Source is not allowed. No Internet or cell phones allowed either. With the government as the primary customer things move more slowly than your average commercial company. Use of state of the art technology is always behind that of commercial companies. Some people don't mind though and will stay with BAE for a lifetime to receive a salary and benefits. When I worked at BAE I felt my software skills getting old. It was time to move on.