I flew this aircraft -- or possibly another reconfigured one, although the FA said he thought it was the only one in service at the time -- ABQ-IAD on Tuesday morning (7/24). Asked the FA if he noticed a difference and he said (emphatically) that he did -- much less passenger frustration. I haven't spent enough time trying to fit my rollaboard on A320s to really notice a difference, but I did observe that my bag (full size rollaboard) slid wheels-out into the bins in F without any difficulty at all.

This may be the only post-merger difference that every single passenger can agree is a change we like! There's just no downside.