Just back from the US - Delta Atlanta flights were both Direct to/from Dublin, no Shannon stopover. The return of the seat back screens is very welcome (they haven't had them for years after they sold off a lot of their aircraft post 9/11 for financial purposes - and they didn't have them last time we flew them in Feb).
Food was..airline food. I don't eat it anyway. Cabin crew excellent. Good drinks service, wine and beer free as well as soft drinks.
We fly exclusively Delta to the US, gave up on Aer Lingus years ago and haven't looked back.