Pros
The culture tends to be focused much more on getting work done but doesn't get all "serious business" about the work being done. Fairly casual atmosphere and you can come in past 9 and no one will bat an eye so long as you get your share of work done. They also have a nice, cheap coffee bar inside the building so you can keep focused on what you're doing and stay caffeinated.
Cons
The focus on results tends to also mean that the less monumental achievements get overlooked. At times there will be situations where producers or non-technical people drop the ball on key issues, and communication between different disciplines/teams in the company can be rather slow or unclear. Overall, most of these problems aren't too bad but pretty par for the course.