Pros
You may meet a few quality, intelligent people - who have also been tricked into trying this place - or continue to fool themselves that they can make a difference with their good intentions. You may be exposed to some quality brands.
Cons
Management is ... just non existent by it's true definition. The way too top heavy slew of directors are protected by some sense of tenure or the buddy system, and provide no productive leadership at all. There is no mentoring or growth opportunity. It's motivation by fear at every turn. If you aren't "friends" with the "right" people here, you are doomed. It's not about quality of work or capability. Oh ya - and they make you physically sign in everyday - because in case you didn't get the message, you are not a trustworthy, professional adult. The digital department is a complete joke. So - if you are planning on a future career - this isn't the agency for you. You won't learn anything. You won't see anyone who is held accountable for actual thinking; it's all just finger-pointing incompetence. You will probably hurt your future interview potential, because who really cares about shelf promotions anymore? There is no real digital work coming from this agency and no understanding at upper management levels of the changes needed to support atempting better digital work.