I flew a brand new American Airlines A321XLR from Los Angeles to New York in Flagship Business Class and enjoyed the sleek new cabin and individual seat. It’s not a perfect business class seat, but it is a big upgrade from the A321T seat we’ve seen for so many years on the same route. While writing my SFO-EWR United Airlines 777 review (a nice comparison of premium transcontinental service on the competition), I realized I never published my full review of the AA A321XLR, so here it is.