Pros
-Free food is amazing -Awesome opportunities like Hillary Clinton stopping by -Working on a product that is exciting -Nice facilities -Great Holiday parties and social gatherings -Lots of amazing people -Looks great on your resume (I hope)
Cons
There are far too many reorgs. Lots of XGooglers and XSalesforce who hire each other and give each other higher salaries/titles than those who have Twitter experience. I seen far too many managers who have never managed a team and should never be managing a team. Do you want a 26 yo who got the managing gig by drinking beer with their boss to be in charge of your career and growth? Promotion process is based on politics and favoritism doesn't matter how many fires you put out at 3am while your coworker is on PTO, if they're friends with the boss, you're never getting noticed. Lots of managers just refer friends to each other's team. The unlimited PTO policy really varies from mgr to mgr but basically you're probably going to feel too guilty to ever take PTO anyway. Not many women in higher/leadership positions.