Pros
Great compensation - Amazon needs to retain top talent at least for a little while. Good benefits. I happen to have a good manager, which is great, but rare company-wide. Working with very smart and capable people.
Cons
Worst work/life balance I have ever had at a company by far. Management expects you to sacrifice everything for the good of the company. If you don't do well, they can put you on a PIP or fire you at any time, BUT if you exceed expectations, you have to wait a full year for review and compensation. There are no mid-term or end of calendar year bonuses, etc - hopefully you are fine with just a pat on the back. Most folks I work with hate working there and won't leave out of fear or because or the golden handcuffs (RSUs). Seriously RSUs are not rewards, they are a retention device and nothing more. They toss their money around to attract the top talent, but in the end have a lot of turnover. I am desperately trying to leave, but have to wait for the right opportunity. Amazon sucks.