Pros
Strong company culture and adherence to values in action. Most managers supportive and willing to help you to succeed. Good annual goal setting and performance management process, though rather elaborate. Career planning is well structured, though evidence of it really working for an individual was lacking.
Cons
Career advancement very slow or non-existent outside of US. If you fit well in the Mid-Western working culture, are favored by those above you, work in the States, and are patient (for years), you'll get promotions. Otherwise it'll become a pass-through for many. Factional in terms of you needing to belong to an inner circle to get much anywhere. International assignments (ISE) are dominantly from US to overseas, very rarely an opportunity is given from overseas to US (or between overseas operations). "Not invented here" rules in the HQ. If an idea comes from Peoria, it's the best thing ever but if a genuinely better idea or practice exists elsewhere, it's easily played down or ignored. Improvements based on experience globally (outside of US) are an uphill battle.