Flew PS on the A350 ATL-AMS.

Good news - the seat is perfect (window, right side), I slept for 3-4 hours, TV/IFE screen was large, bright, clear (and they put a dark sticker over the annoying blue LED), aircraft pressure/humidity was good, and the passengers were mostly well behaved (there were some drunk Dutch dudes in the middle with their families). Headphones were good too - left my Bose QC35ii at home - and pillow blanket combo was sufficient.

Bad news - the A350 seat (mine in particular) was in really bad shape (the cover was torn off the bottom/foot rest, and the foam had come out), and the food and beverage service was worse than Aer Lingus. The "chardonnay" was a dark bronze color similar to someone's urine with a failing liver. I had the "red" instead which wasn't much better.

Here is a photo of the dinner (I didn't eat).

Dinner, PS, A350, TATL