Pros
Fabulous benefits; the building I work in houses everything I need on a regular basis... wonderful cafeteria, gift & company product store, daycare, doctor, eye doctor, dry cleaning services, hair dresser, fitness center, photo processing, postal services... just to name a few. Their focus on health and wellness is outstanding. Training programs in almost every topic area. The company is very open to intercompany movements from job to job. You can have several careers all while working for one company.
Cons
Management is slow to respond to change and new ideas, and not always open to views from new hires. Best practice = "the way General Mills has always done things". Your performance is heavily weighted on your ability to network and navigate the political landscape.