Pros
Good work/life balance. Most of my peers and coworkers are friendly and easy to get along with. Company demands a lot out of you while allowing me to take time off as needed. You get to learn a lot and touch upon many areas/responsibilities. You get what you make out of your career. Department I worked in consisted of excellent and genuinely great people. They have a pool table. I was fairly compensated for my job.
Cons
Leadership is made up almost all founders/homegrown employees and heavy pipeline of individuals waiting to advance. Organizational structure and hierarchy is confusing sometimes. Decisions for perks and promotions could be very politically driven. To get resolutions for issues, may need to raise concern beyond your supervisor. Company culture not clearly defined.