Pros
The people here are great. I've had the chance to work in multiple sites across the US and everyone I've worked with have been awesome. No competition. Everyone helps each other out. People will go out if their way to teach you and help you when you need it. Probably by far the best company to get technical experience. Very diverse range if chemical processes you can learn and get exposed to. Its comforting to see how much emphasis they put on safety. International presence is very strong (India, China, Middle East, Europe, South America) Employee development plan is by far the best. You get to develop a plan with your boss about where you want to be (location and/or job) and with time your boss will help you get there (through training, networking etc). Most people I've spoke to are on the path they planned on. Great company overall.
Cons
Pay is not comparable to oil companies. Once you reach upper management (supply chain, commercial etc) things may start to seem a little clustered and disorganized.