Pros: Really good work/life balance. If you want to work somewhere from 10 to 5, have frequent days off, don't need to learn anything new, and complete 2 things in an entire year, this is the place for you.

Cons: Tech stack is atrocious. Politics of a large company. Lack of credibility of higher management. Legacy Java stack with domain-specific reinventions of open-source libraries that are worse in every way. Attempts to improve the stack get lip service but no competent infrastructure support. There is no serious movement to update the stack and fix things. New libraries and wrappers are written to interface with broken and dysfunctional legacy systems, so even using the new stack doesn't actually increase code productivity. Almost all of the smart engineers have left or are leaving, so you won't get significant mentorship. As a junior engineer, I am actually reverse-mentoring senior engineers, architecting the entire project, and implementing a supermajority of everything on my project. Also, promotions and wages aren't matching what startups are offering to pay now. Due to constant reorgs, promotions are hard to come by, while less qualified individuals get hired at higher ranks due to age. Something which would take you 2 days to complete takes 2+ months at eBay due to the stack and process.

Pros: Job security is high due to the recession-proof nature of eBay's business. Many of my colleagues have been working for eBay for almost a decade. If you are willing and able to follow along, you too will be able to enjoy a long career with the company without having to worry too much about how the economy is doing.

Cons: It's not what you know; it's who you know. There is little correlation between a person's value to the business—i.e., relevant skills or education—and their level of compensation and benefits. Oftentimes, responsibilities are given to people lacking the expertise needed to fulfill them properly. This leads to bad hires who then clog up the gears and keep more deserving people down or out. To succeed, it is also necessary to be able to deal with the preponderance of MBA-type employees, all of whom have a strong tendency to be on the vapid side of things. Talking BS and acting important will get you much further than delivering actual, substantive improvements to the business itself.

Pros: Good pay and benefits. Relaxed atmosphere.

Cons: Slow-paced in the industry.