Pros
There are few pros to working here, but if you happen to be liked by the art director, you will have a lot of opportunities to design. That's not a guarantee however, because there is no logic to who will be favored in the design department. It's not based on performance or talent- it seems to be based on a magical quality you will have no control over.
Cons
if you take a designer job here, most likely you will find yourself walking on eggshells, wondering why you are being treated as sub-human when you're a talented designer, do great designs, extend yourself as much as possible, work overtime, and generally work your tail off. It's not personal, you are just not 'liked', and many find themselves in that position through no fault of their own. It is a very demeaning place to work. If you value your talent, your education and your future- don't do it.