Pros
You'll be a part of an award-winning, vastly growing company. 9 times out of 10, customers will be amazing people to talk to. The occasional freebies, parties, and giveaways are a nice touch, even though it's like numbing the pain of a broken leg by giving you a puppy. It's easy to make great connections with other members of your team.
Cons
The company has shifted to focusing more on its policy than its people; its statistics more than its service. As a result, the "talent and ambition" you come to the company with will lose its value quickly as you realize your personality needs to shift to the standards and protocol designed by people who make it clear that they are more important than you. The long-term and short-term goals of your department usually directly conflicts with that of departments you rely on, so adhering to metrics and quality standards is better achieved by "working the system" rather than learning to do your job better. Requesting training and assistance to do your job better is something usually frowned upon if it takes you away from your phone, so expect to do a lot of research on your own time and own dime. Favoritism reigns supreme and it usually has absolutely nothing to do what you know, but who you know and how often you go drinking with them. Career growth and new positions seem less like a smartly developed plan to move the company forward and more like something made up really quick to shut up the individuals complaining about the monotony of their job and the lack of opportunity. Between team leads, mentors, supervisors, interim supervisors, interim managers, managers, senior managers, and coaches, the amount of "higher ups" and red tape you have deal with to present any idea or constructive feedback makes "being a stand out employee" just not worth it. Cater to the nepotism if you want to succeed, your big ideas can come later. The product itself is difficult to believe in and its frequent updates and changes feel a lot more like damage control than innovation.