Pros
The compensation is very good compared to other places in my area. The leadership at my particular office is great and reasonable. You work with a lot of very smart and talented people. My manager was one of the best managers I've worked with.
Cons
The work is more complex than any previous place I've worked, which for me translates to more stress. Working with Amazon's suite of sometimes documented internal tools and libraries can be frustrating and working with them means less career-valuable experience with open source tech. There is not a lot of autonomy or iteration for my team -- our projects are handed down from above and planned up front. Working with certain types of HR questions can be a real headache, as phone calls go through a call center where it's easy to get shuffled around to different teams without your problem being solved.