Pros
The mission is the only pro. Others have written about benefits (they are average), unlimited PTO (it is not - check the policy and in any case it is not unlimited if you cannot get time off approved). Many good people but the best were laid off or have left. All that is left are the rats hoping the ship does not sink.
Cons
Where to start - Cancerous and incompetent CEO; top-heavy leadership (too many C and VP level folks to count and all make BANK when others do not); goals are wholly unrealistic; HR does not care and is useless (pay is not good, bonuses not paid, promotions have no guidelines and are given to good-ol-boys who drink with managers), processes are borken, "technology" solutions do not work, and no one knows what is going on. Teams do not talk with one another and in some cases work against one anoehter. Seriously, the place is a s**t show.