Pros
I have only been here for a little over 3 months and so far it has been a really good experience. The on the job training is one of the best I've seen. AWS really gives you the time you need to learn about the company and how to be successful at your job. There are a lot of valuable skills you can develop due to the wide array of services AWS offers. The promotional track is also among the best I've seen. Promotions are objective and based almost solely on your work performance. You can grow within AWS or you market the skills in the open market.
Cons
AWS is its own universe of services and technologies apart from any other organization you may have experience with in the past. Upon hire you may not be placed where your skills and experience align best. You are placed where there is company need. This is understandable from a company perspective, but as the employee it poses a tremendous learning curve. Also during onboarding, important information about pay, benefits, etc is furnished to you very slowly and incrementally. Lastly, being paid monthly is definitely not preferable.