Pros
They have great benefits and there are some great people there if you can find them. They also have an in-house dining area filled with great food, so you don't have to worry about going out at lunch.
Cons
Unfortunately, the length of time you have worked there means if you will be listened to. Being one of the few younger people in the building (under 30), I often was treated like a child. The standards that they hold a newer/younger person to are much higher to the standard of someone who has been there for a longer time. If I had anything to say about ways to connect with people, my ideas were never truly considered due to them not going with the tradition of the company. Because my personality didn't fit with some of the people in my department, they made up stories to take to management about me in hopes to get me fired or to leave. Finally, there was no where to move up to the next level in my position.