Pros
LinkedIn really cares about its employees. Many employees have the idea of "culture" and "values", but I don't know if there is another company that is really guided by these principles day in and day out at every level of the individual contributor and management chain. Everyone is extremely approachable, even the CEO! You are able to walk up and talk to a Sr. Staff Engineer and ask questions about something even if you are a new college graduate. LinkedIn is very much not a top-down company. High level initiatives and goals can be decided by the higher level management, but features and products come from the people that work on them. Everyone is encouraged to speak their mind and give their own opinion about anything, even if it is a product or service that you don't work on. Your opinion is valued. Your performance is evaluated in a matter where working well in a team and making your team output better is rewarded. It never feels like it's you vs your coworkers. We are all on the same team, trying to achieve the same goals. The perks are awesome! I believe we are the only company to now have a full week company shutdown for July 4th as well as the holiday time shutdown. Also, we now have discretionary time off (unlimited vacation days). We have incredible, healthy, free food, fantastic facilities, and an amazing music program! Bottom line: LinkedIn cares about its employees and really listens to feedback and actually makes changes according to that feedback!
Cons
LinkedIn says that it very much values craftsmanship, however thus far it has shown that it values execution more. Things may be changing soon on this front however, because there is now a renewed focus on craftsmanship.