Things are not as they appear on the surface.
Pros
Some of the hardest working and brightest people work there. Very knowledgeable. I watched several people be promoted through nepotism, there didn't seem to be a need to be actually qualified for the job promotions. This is a pro- meaning you can't fail when that is the case. I learned a lot of marketable skills. I also, learning how to document, document, document everything!! I experienced both extremes- one supervisor that was scared of the level 3 and one that was heroic in the sense that they did not cave to doing things immorally-( on a management of people related decisions.)
Cons
Level 3 leadership is petty and at times, malicious, in it's treatment of staff. Not sure why, maybe it was a weak concern with culture or desperation to promote into leadership those with poor relationship skills or promotion of those that the leader could manipulate. Cons- if you are promoted to fill a spot and you are chosen for your qualifications- you might wind up being the person that takes the blame for things you didn't actually do. BE WARNED.