Pros
Large employer; lots of opportunity; Cisco is a market leader and an employer of choice. The campus is huge and there are lots of jobs available. The transportation shuttle between buildings is a great gas-saver. Liked being able to telecommute and have a flexible work schedule. Enjoyed attending the all hands meetings hosted by John Chambers, he is a good speaker and the sessions were entertaining and informative. Cisco has great giveaways to new employees. Free onsite perks like free drinks and popcorn. Nice cafeteria facilities with good selections and reasonable prices. I liked that I could do my personal banking, stationery, and shipping at Cisco too.
Cons
Large employer; can get lost as a little fish in a huge ocean; lots of autonomy and self management expected. Had to find my own chair, computer, desk equipment on my first day - not a great first impression for a new employee. Moved 10 times in 2 years - don't get used to a place or "home", you'll be losing it soon. Management expectations not always clearly communicated. Feedback not always timely or direct. The only constant is change. Work not evenly distributed - some working ridiculous hours and some not hardly working at all. Perception is everything, isn't it?