Pros
There are none for people who work in UX, UI, and digital product development
Cons
Most likely you'll land on team(s) that do minimal UX and UI work compared to domestic and global companies. Also, you'll have minimal (if any contact) with clients from Fortune 500 companies -- in other words while your friends at other companies are networking with the big dogs, you'll likely be cut off from the outside world and restrained to working with only AARP staff. Search Google for cutting-edge apps, websites, AI, or digital products from AARP and you won't find any because they don't do that kind of work (they may partner with a company that does, but they themselves aren't known to develop their own big-money digital products). So opportunities to be paid BIG bonuses or stock options for launching lucrative digital products will be scarce-to-none. If you want to know what kind of "design" work you'll be doing, go to aarp.org -- yup, no joke. If you're SERIOUS about your UX, UI or digital development career, do NOT go there. Your portfolio will have nothing to show for it. You've been warned.