SO and I flew ORD-LHR. I took 3L and she took 5L. I found 3L to be incredibly noisy. The FAs didn't bother closing the curtain or dimming lights while they banged around until dinner was complete. Tried to sleep immediately but could not. SO in 5L had a partially covered window that was very challenging to fully close because the way the seat was aligned with the fuselage. I would probably sit further back if looking for less disturbances even if meal service takes longer. Didn't love the wide-open layout... it's a loooooong cabin.