Pros
You work with really smart people. There is a good work-life balance as well as excellent benefits and the opportunity to work from home.
Cons
It''s really "clique-ish" if you attended a certain university or if you are a part of a certain group, you have a much better chance for advancement. If you did not, it's as if you have to work 2 to 3 times harder just to get noticed let alone advance. As I mentioned, there are a lot of smart people there(on paper), but sometimes a lot of those people seem to be more interested in patting themselves on the back for their past accomplishments than they are at working hard or trying to help the company. A lot of arrogant people. There's also a lot of ambiguity in roles and responsibilities.