Pros
The stock options are going to be worth something, so it's worth coming if you can negotiate a large grant. The hours are pretty good, I leave the office by 6pm so it's not a bad place if you mind your own business and are satisfied collecting a paycheck and vesting. There are all the usual perks like free food. Hackdays happen every month.
Cons
It's a highly political environment where the people who get ahead are those who promote themselves the most. The management pretends like everything is hunky dory, but the culture isn't the greatest and morale is low. It's a product-driven company where engineers aren't recognized and don't get much respect. Having said that, we keep growing and making money, so something is definitely going right.