Pros
Great people to work with, fairly competitive pay (depending on how you negotiated), great retirement plan, and interesting work. Work/life balance is good, depending on where you are in the company. Highly ethical company from what I've seen in my 6+ years with the company.
Cons
Lack of innovation and thought leadership; focus appears to be on serving customers the same way we always have, without providing much "above and beyond." Our internal information technology is consistently 10 years behind the time. Company does not seem to be forward-looking, in spite of recent announcements of breakthrough technologies in fields such as fusion power and quantum computing. Company appears beholden to the shareholders alone, and the quarterly earnings call is paramount. Company / CEO have almost zero long-term focus, and that thinking permeates with things like R&D spending and employee training, which is non-existent. As a result, many managers are obsessed with their immediate profit/loss, and that trickles down to ridiculous unpaid overtime mandates on staff. In spite of downturn in government spending, company has shown little to no motivation to pursue commercial markets; emphasis is on international governments which are also fiscally constrained. Medical benefits are terrible, the worst I've ever had. Premiums, deductibles and co-insurance limits for a family would make almost anyone cringe.