Pros
Really casual atmosphere, benefits are awesome, good facilities, pretty campus. Some management encourages employees to take time during the day to work out.
Cons
Management has repeatedly demonstrated that they prefer to hire out higher-level positions instead of promoting from within, despite new hires sometimes having less experience. When they do promote, albeit rare, it's a popularity contest and based on subjective criteria rather than demonstrated track record and results. Some management is so entrenched and stubborn that they can't bring themselves to try new approaches to doing things, regardless of how well it might work and how much the company prides itself on innovation. Pay doesn't keep pace with similar jobs at other companies. Work/life balance can be horrible. High turnover.