Originally Posted by
MSPeconomist
For D1, DL has been making a big deal about 100% direct aisle access and it makes a big difference unless you always travel as a couple. For TATL routes, there's a big difference between a 767 and a 757 for this reason and the 767 similarly is a much better experience in coach. I'll take an additional connection to get a 767 rather than a 757 with flat beds for a long segment.
Once DL started putting D1 flat beds in the 757s with the 2x2 layout, DL dropped the "100% direct aisle access across D1" marketing. They did advertise certain routes with all-aisle access - I specifically remember LHR getting such marketing at one point.