If you want to be miserable, work for Genzyme - Manufacturing Associate bei Sanofi: Mitarbeiterbewertung

Great company to work for

promotions are very hard to come by

The company has an excellent, very collegial atmosphere. Employees are supported well and there is excellent support for most processes from numerous line functions.

Some processes as well as the governance structure can be a bit confusing. More so than other large pharma companies. But even with this. There are almost always enough people who know how to get things done.