Pros
Lots of "culture" activities and a potential beach trip. And more free T-shirts than you could ever wear
Cons
In my experience, more effort was spent on culture than on creating a functional work environment in the creative department. This department is seen as a money losing department that the company does not want to invest in and sees as a bonus to their clients. Which it is. But no amount of donuts, happy hours or tshirts can make up for being expected to do the work without the time it tools you need to accomplish them. Management of the department seems out of touch with the most up to date marketing trends and techniques, but still expects results.
It's definitely the type of place where they day things like, "this team is like a family" but when one of the "children" raises concerns about work loads, or asks for flexible work accomodations, it's an issue. It feels a bit like you're being lulled into a sense that they care about you and your opinions. But if you do work there, know that you should not be honest on your anonymous yearly reviews. You will definitely be singled out for speaking up. Go with the flow, enjoy the parties, don't complain.