There you can learn a lot of things about communication focused on crisis management. Sometimes it's better than a University's Master Degree. Also you can grew up in company's positions, and can relate with many important people of different industries.
Cons
The pressure to achieve results, poor benefits for employees and bad salaries for lower positions.
Leaders think the best way to make you accomplish your goals is making you feel bad about your work. Their only motivation is money they don’t have a fulfilling purpose.