Pros
Nielsen underpays in every market it is in. This is a pro for anyone young, or looking to start out in a new field since any high performers leave the company after a few years.
Cons
The biggest con is that Nielsen loses its best talent. This means that the company has no homegrown talent and has to continually cycle through senior level managers from outside the company. This creates an atmosphere of never-ending change for the sake of change when new management is trying to prove themselves. This also has the adverse affect of stifling innovation. The company is forever behind technologically and debuts products that were most likely bought from a smaller start-up, due to lack of internal innovation, years too late to capture significant market share. The Black Belt program is twenty years outdated. ELAs straight out of college with no management experience are given high-level management positions that they are unable to perform in. Poor performers will stay in the company for years because the company fears lawsuits from firing them. Pay is highly unequal and based off your managers preference for you personally.