Pros
The company overall is massive. There is a lot of opportunity if you wanted to relocate, move around position wise within the company or simply get some travel in as part of the number of positions that offer field work (if you're into that sort of thing)
Cons
From my personal experience, I never felt like more than a number while working there. I worked hard, I went above and beyond but the result was always the same. A lazy year end review from a manager who had no idea what I do or how I do it with an overall rating that had no true reflection to the effort and work I put in (despite my detailed and well thought out self assessments). It was my impression that the company motto is to shy away from praising hard workers with the fear that they will "get comfy and slack off". The whole "excellence is unachievable because there is always room to grow" mentality. Obviously this is only my experience. Its possible other teams in other departments ran differently. But after 5 years of hard work only to get a measly 2% cost of living adjustment year after year (which honestly didnt even equate to the REAL cost of living increase during that time) I had enough and left.