Excellent job stability, good salary + benefits, many opportunities to move around if you do not like your current job, great for experience, very inclusive and helpful culture
Cons
Possible job stagnation, not always sure of my importance or what you're working towards (sometimes feel like a cog in a huge machine), lacks employee diversity
Good job security for employees below level 5. Acceptable starting salary. Excellent health care for ~$20/week. The culture encouraged a good work/life balance where is was completely normal to work a 40 hour week.
Cons
The company is big and slow-moving. They do a poor job of capturing new business and tend to get focused on small savings at the cost of good employees and general productivity. It's difficult to get raises and promotions at low levels.