Pros
Up until now, I would have given F5 5 stars, but with the roll out of open space format to save money the working conditions have gone way down. If you work well in a loud and bright open pit 'call center' like environment, this is the place for you.
Cons
F5 Seattle is in the process of replacing cubes and offices and rolling out open space floor plans. Everyone except directors and above are being moved to 2.5 x 6 tables, low to no walls, and very bright overhead lighting. There's no privacy, it's crazy loud with cement floors echoing every foot step and conversation, and everybody can see what everyone else is doing across the whole length of the floor. The guy in front of me has his desk raised, I get to stare at his backside all day.