Pros
By far, the benefits have to be the main reason. The health care benefits are superior and the retirement plan account which is above and beyond the 401k offered by most employers. The company offices are very nice to work in and there are some nice people who you come into contact with. There are a small number of very senior people who are exceptional should one be lucky enough to have contact with them.
Cons
The company is in no way a meritocracy. It is a highly political organization and there is not much focus on creating a linkage between an individual's performance on goals that are linked to company objectives. In fact it's somewhat difficult to even determine what the objectives are in the business lines. Anyone who exhibits any sense of innovative approach is unwelcome and in some cases shunned. Some senior management have low regard for associates and one referred to call center associates as human "phone--trons". In the recent hiring spree they have hired people who are incompetent in their jobs and supervise very senior level individuals as though they were working in a factory. I've never worked anywhere before as an exempt employee where there is so much scrutiny about how many hours you worked each week rather than having a focus on what you accomplished and what you contributed to the betterment of the organization. It is not unlike working for a bureaucratic, socialistic governmental organization reporting to some of the newer "managers." Much of the lack of best-in-class or world class employee engagement is directly linked to the primitive HR organization and the lack of visionary senior leadership.