Pros
It was a nice company when I joined in early 2011 - they were still at the Cupertino offices. The Kindle teams were focused on executing and e-readers/tablet products. Cameraderie was good and everyone was very helpful...until....
Cons
All I can say is the Fire Phone organization completely ruined a once-promising hardware division for Amazon. Their arrogance during the development phase of the project (which by the way took almost 3+ years of development) was legendary. After the fire phone went down in flames they still kept that arrogance. Then upper management did the dumbest thing and did a re-org which gave the Fire phone team the keys to Lab - the Kindle product line (the crown jewel). Suffice it to say, that team started to install their middle management into stronger positions and the mass exodus of strong employees have continued since October 2014.