Pros
Free beer. Can negotiate high compensation (just threaten to leave). If you can stick around long enough you will be promoted every 2 years...not a bad way to go from Manager to Director in 4 years. Not much else to throw in here.
Cons
Massive culture problems, which cause rampant attrition or worse random layoffs (of which there have been many). The Company hires too fast in one area and then lays you off. Lack of a cohesive strategy. Executive management is nonexistent. Issues with sexual harrassment, bullying managers forcing people to work till midnight every night, etc. Truly horrible, horrible place. Do yourself a favor and never look at this Company, unless you know you can endure the pain for 2 years, but make sure you get paid a large compensation package.