Pros
I will say this about Amazon, the kind of job you have, and the team you work on, make all the difference. I was lucky enough to be on a great team with great management. Amazon is a little too far on the frugal side, but the work was engaging and the work environment fun and relaxed. My coworkers were all very capable at their jobs which made each day much more enjoyable. My manager(s) were flexible about the work hours and encouraged a healthy work/life balance.
Cons
Communication between the teams of various expertise, e.g. Mechanical, electrical, embedded, etc., was disjointed and clunky. It was difficult to sync schedules and share work. Additionally, as the project moved into the production phase, a lot of the exciting and innovative work was de-prioritized, which sucked some of the fun out of working on the Amzn Go team.