Pros
The MBM framework that drives the way the business is run is common-sense based. It's very accessible and easy to understand, and it really does drive you to make more sound judgements about business decisions. The company is comprised of a mixture of employees who have been with the company for a long time and those who are new, but overall the feeling is that of a very tight-knit family. The building is very conveniently located right next to a Marta station, and there are a lot of restaurants within walking distance. They just started providing free, unfiltered wifi for employees to use during the day.
Cons
The office space is pretty dated. Don't expect fancy furniture and decor. The location downtown isn't bad, but traffic in the evenings can be a bit of a burden until you get to the interstate. You can tell you're working for a big corporation, as they have the computers and Internet locked down very tightly.