Vantaggi
The people that I've met here are some of the best I've met in life! I've made lifelong friends here. The benefits definitely play a role in why people stay with the company. There is a clear career path and you can climb the latter rather quickly if you work for it. Half day Friday's in the summer, if your position actually allows you to take advantage of it.
Svantaggi
You still have to deal with politics, very hierarchical structure. Depending on your position, you could end up working really long hours. At the same time though there are people that can take advantage of the work flex (more accepting of work flex if you have kids or are married). Straight salary is under the midrange of the market, but they make up for it in benefits.