granted i only have 2 hours of on hands time with windows 10 but during this time i didnt see anything i really liked that win 8.1 didnt already offer(outside of quad snap but i only see that truly useful on big 21:9 3440x1440 monitors), couldnt care less for the start menu (im use to 8.1 and everything i need is on my taskbar or right click menu). It makes me crazy how when you select "file explorer" that it gives you a big windows with your favorites instead of your drives!!! I have the left side panel for my favorites! I'll most likely check it out again once it reaches release or close to release.