I too am surprised by the seat comments. I think the seats LOOK very uncomfortable. But Ford did a great job of capturing the 1960s design without hurting comfort. The surface area of the seats still provides sufficient and even support. As someone who drove my GT from Los Angeles to Denver and back, without stopping for more than gas both directions, I never had an issue. Same for my recent non-stop from Los Angeles to SLC and back for the NFGT press launch. Car is very comfortable on the open road for long distances.
I will miss that among many other things.