I just flew ARN-MIA on the 31st in Business on the A350, and I have to say I agree - I was overall very happy with the experience. Crew was very friendly, food was good, IFE working (although I didn’t use it), internet working. If I have to find something to complain about, it would be that the boarding experience in ARN was messy - the usual problem, where I ended up boarding with group 3 because I couldn’t make my way through the throng of people blocking everything.
To top off the excellent trip, immigration at MIA was an absolute breeze. No queues at all; when I walked straight up to a counter and presented my (non-US) passport, the agent didn’t ask any probing questions and didn’t want fingerprints or anything. He didn’t even stamp my passport, basically just scanned it and waved me through. Not sure if it’s because it was NYE and everybody was in a good mood.
I’m looking forward to the return trip tomorrow.