Pros
Great 401K benefits-- matching and 100% vested at day 1, good work/life balance, commuter benefits include free transportation up to $120 a month, education reimbursement is high. Office environment is beneficial to be at the corporate headquaters because you get to interact more with upper-level execs than at ofther locations. The Communications team is very news-based and not fluffy. And when difficult organization changes are made, they treat employees like adults and explain why.
Cons
Being that its the corporate headquarters, the office culture is a bit stiff and mostly older individuals. Its also difficult to feel connected to the products when you aren't in Seattle. As mentioned in other reviews, everything takes extremely long to work through. Often times you'll work on a story or project and it either gets cut during the long approval process or it gets shot down due to changes that make the story irrelevant. Any growth is often lateral. They will move someone from project to project with the same title before moving them up. Vacation benefits are terrible (10 days for 1-5 yrs, 12 days for 5-10 years... it takes 10 years to get just 15 vacation days!)