Pros
Some of the existing systems are great to read and get design inspirations. From the three things, Vision — Design — Implementation, the vision set the PE+ team is excellent, and the design done by lower teams is also fine. But the implementations done by junior engineers is very bad, and the managers have no clue as most of them are of program management background. So if you want to do some "lazy work" and go away to a different team after some time, then Amazon is the best place.
Cons
Amazon is a big company and does not have a set pf pros/cons applicable to the whole company, as most of your life revolves around your peers and manager. But if you manager is from program management background, then even God can't save you from getting burnout and backstabbed. And if your team has a manager from an engineering background, then at least you have a chance to explain your challenges and results.