Pros
Great people, free food and a fun office to work in. Employees are allowed to work on their own projects as long as it aligns with their manager's OKRs.
Cons
Career growth, junior management, 401K, Health and Life insurance. LinkedIn had a lot of growth in 2011 and 2012. They tends to hire people over qualified for the roles/positions they are trying to fill and promote long standing individual contributors that have been with the company. Doing this has caused some problems when teams have a lot of senior individual contributors reporting to junior management. LinkedIn's Sales Organization, especially Talent Solutions, is over grown with limited opportunity to move up in the company. You will see employees running to other parts of the sales organization since there is no growth and they are trying to find their own career path. Management always listens to open, honest and constructive feedback, but they never do anything about it. Employees have OKRs each quarter, giving managers only enough time to work on writing feedback on employees for each quarter. The company is starting to split with so many offices. (i.e. San Francisco, Mountain View, New York, Chicago, Sunnyvale, etc.) This is a big issue for those that want to work in the office with a team. A lot people work from home or work in remote locations, making it hard to collaborate with teammates.