Ex-Amazonian here. I still use some of the principles in my day-to-day life. There are some things I don't like about Amazon, but I reckon they did pretty well

Ex-Amazonian here. I still use some of the principles in my day-to-day life. There are some things I don't like about Amazon, but I reckon they did pretty well at the Principles - and I liked the way that they refined and clarified them over time, eliminating any that didn't work, and providing good examples to prevent people from over-optimizing individual principles (particularly frugality) to the point of uselessness.