A friends was working for one of the Amazon contractors, his shifts were 3 twelve hour days a week.
Why he quit was he was expected to clock out, then go through the daily "did you steal something" screen, which took 15 to 30 minutes (he was working in small electronics pulling). Gave him a door-to-door time of 13 hours. Way longer then he wanted to be away from his dog.
2008 F350SD V10 with an 2012 Arctic Fox 29-5E
When someone tells you to buy the same rig they own, listen, they might be right. When they tell you to buy a different rig then they own, really pay attention, they probably know something you don't.