Pros
Boeing is a wonderful company to work for. Opportunities abound and you have access to the best technical facilities and Subject Matter Experts in the world bar none. Being part of something that improves lives and makes a difference has been very rewarding during my career. The people are what makes Boeing great and interacting with a diverse workforce can be amazing. Daily interaction across the nation throughout the enterprise is very powerful.
Cons
We are so big that at times things seem to be slow. If you understand and embrace the culture you can move mountains. The down side is that for some, the large scale and slowness defeats their will to be creative and engage. Creativity is fragile and sometimes the work to bring on change just seems like too much.