I know complaining about their website and app may seem petty, but one of my biggest annoyances with AA is how UA's customer-facing technology is light years ahead of AA. The fact that I need to wait 4 hours to see the upgrade list, can't have airports saved in the flight status, can't see the seat map, can't request SWUs on my own, etc. - it seems like a 2019 Tesla (United) vs. a 1980s Honda (AA). My general experience with AA is quite positive, but their app is actually one of my single biggest issues that they don't seem to care about (excl. they don't care about their NYC passengers). The app doesn't need a facelift, it needs a complete overhaul.