Pros
You really get to know your co-workers and they become work friends that you have during your life with the company. Most people have been with the company over 20 years. Remember this company started at as Systemics, Alltel, Fidelity, etc. And many employees were acquired from their bank jobs as banks outsourced their it departments. It is my co workers that keep me coming back.
Cons
Compensation after you reach a certain point is taken for granted. Getting promoted without changing whom you report to is very hard. Training is not always encouraged. While one of the pros is the fact that people have been with the company for over 20 years that is also a disadvantage because some people never forget your missteps or if they don't like you -it could impact your growth.