Pros
Company has good initiatives when it comes to recruiting newly graduated college students. When it comes to the scientific and engineering field, it has rewarding components for a employee. In that area, you will see some job longevity.
Cons
There is an "old school" management style, despite efforts to change "old management styles" prior to Buffet's purchasing the company in 2009. I believe that people who have work there for longer than 12 years, had been affected by these "old school management style", and wish perhaps that it wasn't the case. Nevertheless, people in general are very welcoming and good to work with. I wish I could say the same for management, but if you have a problem with management style, and the way they may talk to you, you may want to consider working some place else, because HR would not try to address those issues. A manager, despised his/her unruly or potentially legal unruly behavior, unfortunately would not be sanctioned. The word amongst employees who have work there for longer then 10 years, is to keep your head down, don't say anything, or you will get fired.