The window-snap layout menu is neat but I wonder why snapping features always seem to prefer screen halves/quarters. It is always more useful to me to have something like 1/3 or 2/3 and I think it should be there.
Also, there just isn’t anything attractive to me about the space-wasting layout of Ribbon in Explorer windows and I hope there are plans to fix it. (It’s still there in these screenshots.) It is easily one of the lowest content-to-chrome ratios I have seen.