Pros
Great health insurance - endless options. Onsite dry cleaning, convenience stores, great cafeterias - and that's pretty much where the pros end.
Cons
Don't know where to start. Everything from parking to management sucks. Managers don't know which end is up and are always trying to one-up each other. No career path, yet they micro-manage with quarterly "checkpoints" (mini performance reviews & smackdowns). Complete sticklers about how & when you can take your vacation (24 hours notice is a MUST otherwise you get an "occurance" on your record), calling in sick is an "occurance". Five occurances in a 12 month period gets you formally written up. I worked in two different departments and they had totally different cultures. HR was actually a lot of un, but IT was AWFUL. No guidance, no training, no introductions, just "here's your desk, do you job." That being said, there were always meetings about nothing. You'd sit in a meeting for 1-2 hours and come out not knowing anything new. I finally left because I couldn't take the disorganization and chaos of IT.