Pros
As others have mentioned, Ipsos has a very positive culture. I've never had problem getting help nor helping others in my turn. I feel very supported by my managers and senior leadership and am allowed to work in the style that best suits me so long as the work gets done. While it is a large global company and change can happen slowly, Ipsos is looking toward innovation and keeping on top of emerging trends in research.
Cons
As systems and processes are upgraded and new solutions are being offered it can sometimes be difficult to get the info you need about how to sell or execute on a specific product. There's some silo-ing between divisions of the company. Not that anybody is withholding information, but more that it's just not common to interact with other divisions even if they're working on the same accounts.