Pros
The only pros will be the feeling when you get another job and leave and the laughs you will have at Fireeye's expense.
Cons
Where to start? this is the worst place I have ever worked at ever including the jobs I had in high school.The place was built on greed,90% of the IT department where nothing but stock watchers that did as little as possible just to slither by while talking about what cars they where going to buy once they sold their stock. The ones that did work hard and tried to make change where never rewarded and where just ignored in their ideas.The execs pumped the stock up to $90 at the peak sold and they all all got rich and now the stock is now at the $15 (!) range leaving the employees with worthless RSUs along with low pay. Perks are garbage who cares about free lunch and free snacks when there is no 401k matching and RSUs that are worth squat? I heard they got a new "gym" now and it's another joke.