Good While it Lasts...It Won't
Pros
Cisco pays pretty well and offers good flexibility and some perks, and some of the administrative things work surprisingly well for such a giant corporation. Cisco does a lot of good work in the community and encourages staff to give back to various charities, etc. and does a good job of promoting mobility across job functions, etc.
Cons
There is a constant threat of a "Limited Restructuring" - nearly every year, you will lose some colleagues if not your own job, which absolutely kills morale. They make a lot of noise about how great their culture is - which if you have to say it so often, means it is likely not the case. They can be completely tone-deaf, for example, scheduling all-hands, AMA-type town-hall meetings with execs on the same days they're laying off hundreds of people, making "The People Deal" complete BS.