Pros
Great place to begin or end your career. There are lots of learning opportunities at a more relaxed pace, much more manageable than commercial or industrial. The 9/80 work schedule provides excellent opportunities to make the most of your vacation time. Good work-life balance. There are many smart people working there. It is highly advisable to learn as much as possible from the senior employees. Raytheon experience combined with a security clearance looks great on your resume. It is a great place to gain fundamental experience and then move out to move up. Or, it is a great place to come toward end-of-career and enjoy a steady work environment.
Cons
Process driven culture tends to hinder innovation. Following a checklist trumps engineering reason. Engineering judgement is largely stripped of designers. Internal recognition/promotion is severely lacking. Zero training budget. It's very common to hear -- 'it is what it is' when the above things are challenged.