Microsoft

The good employees are very good. The people with real knowledge are willing to share and help you grow and help the company move forward.

Constant threat of being stabbed in the back if you stand out or speak up about improvement. You will be working in what most people would consider less space than a broom closet.

There are several company cultures which slow everything. From the "don't give a darn" folks to the "I've been here longer than you, so I am always right" folks to the "I am wearing sandals and gym shorts to work because I am the star around here" folks.

If you want actual professionals to work at Microsoft, then you need to employ professional managers and interviewers. If you pack too many rats in a pit, they are going to spend more time fighting each other than being productive.