Being a Star nut, I enjoyed my US flights!
Although I hated flying on the regional jets between STL
and the guy on the first leg sitting next to me stunk, I couldn't have asked for a better set of flights.
was my first time flying an Airbus, and it was an A321. It's just a little smaller than the 757 and carries a few less passengers (169 vs. 180-188); it also felt less powerful and felt like it was straining to climb. There was also a horrible vibration on takeoff.
Comfortwise, it was typical Airbus. The extra seat width was noticeable, but I found the legroom to be a bit lacking whereas it was the opposite with the 757.