Vantaggi
Lots of opportunities for knowledge sharing within sister facilities under the GP umbrella. Corporate training programs are interesting but are intermittent throughout your first two years. Easy interviewing process if you understand and implement their Market Based Management verbage.
Svantaggi
Hard to get capital projects approved since their approval process goes through numerous levels of management, up to corporate level. Might start off with a decent salary but then raises are hard to come by for salaried employees. Typically have to work above and beyond to show you have created lots of "value" to the company. They hire based on character and expect that you can teach someone to be a good engineer, but in my opinion you need both. Soft skills will get you far in this company. It is also difficult to challenge things.