Pros
I worked with a lot of really smart people—especially the other designers, and particularly some of the engineers. I learned a lot about cloud computing, and everyone there (at least on the IC level) was super kind.
Cons
Recently there have been some questionable firings after employees raised some concerns about product direction to leadership. Leadership emphasized that they wanted to move quickly and they told everyone to "disagree and commit", but refused to be transparent about the decisions they were making at the executive level. Constant changes are happening at the organizational level that affect individual contributors greatly, but very little is done to explain why decisions were made or ease any difficult transitions that have to be made.