Judging from early reactions, the aspect of Crossway's new Single Column Legacy ESV most likely to be misunderstood is the margin. On the outer and lower margins, 1.25 inches of white space buttresses the text block. As a result, instead of being centered on the page, the text gives the impression of cheating high and to the inside. The section headings and page numbers kick into the outer margin, but otherwise the blank space is available for notetaking. Ah ha! This must be a wide margin Bible!
By comparison, the ESV Wide Margin from Cambridge offers a bit more room on the outer margin and a bit less at the bottom of the page. The major difference, of course, is that the ESV Wide Margin features a double-column layout and smaller type (8 pt. Lexicon for the Wide Margin and 9 pt. Lexicon for the Single Column Legacy). As a result, while the white space in the Wide Margin must be used for notes covering, for example, John 1:1 to 1:37, the Single Column Legacy's white space only has to cover from John 1:1 to the first five words of 1:30.
Maybe that seems an unfair comparison, since the Legacy's book title is pushed farther down, so let's compare a couple more pages. The second page of John's Gospel runs from 1:38 to 2:23 in the Wide Margin, and from 1:30 to 2:9 in the Legacy. The third page runs 2:24 to 3:33 in the Wide Margin and 2:10 to 3:13 in the Legacy. The point is, the Legacy gives you roughly the same amount of space to make notes, and a few less verses per page to make notes on. Although the Legacy is about an eighth of an inch thicker, it's also about 1.25 inches narrower, as you can see: