Pros
The mission is very intriguing and motivating. Good benefits. Super smart, highly devoted, and friendly employees. The employees are the reason the company is successful.
Cons
Most of the executive team members are way over their heads. They like to think they are responsible for the company's success, but its all about the employees. Employees that speak up about their concerns or provide feedback to executives can easily find themselves blocked from future career opportunities or even without a job, especially when lay offs occur. This is the complete opposite of what executives will tell you at New Hire Orientation (don't fall for it). The only reason performance management program is still in place is the designer of it is in denial and can't see the negativity and harm it causes employees, due to their own ego issues. You will be expected to devote most of your life to your job while working there.