Pros
Good salary; depending on which unit you work for, you might be doing work with a positive social impact.
Cons
This is a very top-heavy organization and at every turn you'll have to deal with redundant managers to get anything done. The association doesn't seem to have a clear idea of its priorities and every few months it will roll out a new campaign or long-term project that may or may not be abandoned in a matter of months. If you like having meetings with as much people as possible, this is your place. What I describe is extensive to most of the association. I worked on the editorial side of things and it certainly applied there, along with the fact that AARP relies heavily on contractors to do a lot of the work. These are people who are often paid no benefits or benefits that are substantially inferior to the ones that staff gets, and little or no paid vacation time, even though the place wouldn't function without them. As it is, it's pretty hypocritical that an organization that is supposed to fight for retirement security would hire so many people who don't have a 401(k) and can't even count on decent benefits.