Pros
Schering-Plough encourages Work-Life balance. It offers benefits that are better than average. Eligible employees also get an annual bonus, which is much better than average - the last 3 years it has been almost double than expected! This annual bonus will probably diminish in the years to come since Schering-Plough is now struggling. Schering-Plough also has a pention plan in addition to a 401(k); the pention plan is standard unlike in many other companies. With Schering-Plough's purchase of Organon (a European company) there are lots of opportunities to learn US and EU regulations. Also, Schering-Plough is working hard to figure out how to work more efficiently, which allows employees to learn risk-based and Quality by design processes.
Kontras
Career growth is almost nonexistent. Higher-level positions are usually filled by people from other companies - not by promoting internal SME's. Ever-ongoing re-organizations.