Pros
Amazon’s leadership principles are legit and are applied every day as part of the decision making framework. Everyone is constantly trying to replace subjective opinions with objective data-derived opinions and as a result even and L4 SDE can influence a design discussion involving an L7 Principal engineer. Work is structured around teams and everyone on your team including your manager is there to support you and share their knowledge. Amazon is solving huge problems and the work is super interesting.
Cons
You need to be ready to vocalize your opinions / doubts / needs as an employee. If you don’t advocate for yourself you might end up working on less interesting stuff, getting sidelined in design discussions, and feeling less like a part of the team. So if you are someone who likes to put their head down and work solo this probably is not for you.