Pros
Almost all salaried employees are entitled to a yearly bonus and salary increase. The culture in the Charlotte, NC Shared Business Services location is young, hip and generally fun. The location on Microsoft Campus comes with perks such as access to free Coca-Cola products and a cafeteria.
Cons
Working at a large company such as Merck comes with the risks of dealing with corporate politics. I learned very quickly that it's WHO you know that gets you places, and even that doesn't always help. Some managers were slimy and only looked out for their best interests, while smiling in your face. It is also very difficult to be hired at Merck unless you come in as a contractor, at least in the Charlotte, NC location. It can take a minimum of 1 year as a contractor to be hired permanently. They almost always promote from within the organization. Advancement also seems to be very limited unless you are willing to relocate to a different location.