Amazon

Generally, you are not micromanaged. There is not a lot of politics, and you are mostly left to do your work. Career growth is measured by impact, and you have the ability to drive your own career. Benefits are good; Amazon cares about their engineers.

Experience at Amazon is highly team-dependent and manager-dependent. Turnover is pretty high, so your team may be good, but within a year and one manager change, things can quickly get bad.

Often times there is a very heavy workload. I'd expect at least 50-hour weeks, sometimes more, sometimes less (like I said, dependent on team).

Not a lot of activities or free time to explore learnings outside of your domain. Generally, you will spend all of your time working on your team's work and not doing any activities or hackathons, etc.