Pros
Benefits are amazing, generous 401k, a ton of time off, flexible schedule, great healthcare, nice gym, holiday and performance bonus. The IT area gets a lot of perks because we aren't tied to our desks being on the phone, the atmosphere and dress code is relaxed and the culture is pretty easy going. Ping pong tables, wii, and pool are commonly found around the office, but if you're really working you rarely have time to use them anyway. Work is generally challenging and engaging. The job is very easy if you are willing to let things go that don't strictly follow under your responsibility and you CYA.
Cons
Employees are promoted purely on tenure and not on performance within the first 6-8 years at the company, at least within IT. This is extremely discouraging, particularly for high performing employees. Many college hires started working at the company with the understanding that their performance would determine their career progression and were promised promotions within the next few months upon increased performance. Once the policy change to promote on tenure was implemented these employees were told they would have to wait twice as long even though they were doing their job at the next level weeks prior according to management. Teams often contain complacent members as the company is reluctant to let underperforming employees go. Mediocrity is often accepted as high performance, support from management can make or break your experience. The salary is below average but is supposed to be made up for in benefits which is somewhat true. Culture/kool-aid can be a bit much but it is a great mission and the company probably actually lives their culture more than most.