Pros
The company has some serious resources and offers lot of perks to employees, e.g. excellent benefits, tasty and affordable on-campus dining, free shuttles from San Francisco. Most employees were pleasant and there was a comfortable and casual environment.
Cons
Some of the folks you have to interact with can be brusque and outright rude because they think this style will get results. While there's some logic to this, ultimately, it's very unpleasant to have to work with these people on a regular basis. There was lots of turnover in my group which meant that new employees were coming on board who needed to be trained. This was going on at the same that work was ramping up for the group. So you ended up with too much to do, co-workers who didn't always know what they were supposed to be doing, and had folks from other groups and divisions breathing down your neck as you worked away. This led to dissatisfaction which then led to more folks leaving. I think this group finally stabilized some time after I left, but I'm not sure of the dynamics now.