Pros
The employees donate huge amounts of money and time every year to charities of their choice. The health-care benefits are the best. If you have a good/great manager, that makes all the difference. See cons.
Cons
But, if your manager is new and is pretty much only about a power game with other managers, you will find yourself lost and gone within a year. Reorgs. They are horrendous to people's psyches. Layoffs - they can ruin people's lives. Or, they can be a blessing in disguise. If you were an employee who worked remotely, they dumped you first even if you were a straight A, gave everything, high performer. Oh, and they laid off MANY people who were weeks or months away from their 15 year anniversary. They have no moral compass anymore and HR is in the toilet.