Amazon reviews

I worked at the Fulfillment Centers at Amazon.com. That being said, at the FCs, attrition is high and morale is low. This is probably because everyone works long hours, there is no AC in the warehouse, and also there is an intense focus on productivity rates. So in general most regular hourly workers seem quite depressed and robotic. This makes for a depressing work environment. As a result of this, there is frequent turnover among the staff.

There's a definite work-life balance conflict. Standard practice seems to lean toward over-hiring for positions with duties inappropriate for backgrounds. Infrastructure isn't complete - while there's great infrastructure for build/deploy the complications of the systems causes lots of development down-time and a lot of home-grown in-team solutions. Given the high requirements on individual teams, the amount of team-to-team sharing is pretty small.