Pros
People go in wanting to bring new ideas and work hard. Somewhat fun environment, depending on what department you are in.
Cons
People eave having not changed anything, or learned anything new. Senior management will say they want change but they want job security so the slowest hardest longest mundane ways of doing things grants them their job security. HR department allows management to have power trips over lower level employees without intervening or finding them liable. Finance department is the worst I have ever seen in any company and that's due to primarily to the senior management. Also no room for promotions again due to senior management. I have heard many stories in my time there from other departments on how downhill the Finance department has gone in the past few years.