Honestly, I'm not that impressed so far. For a touch-based PC, Windows 8.1 > Windows 10. The issue is that Windows 8.1 allowed me to remain in a touch-based UI for the majority of my time, but by hitting Desktop, I could easily go in and fiddle with whatever I needed. However, Windows 10 isn't very clean in this manner as there are two ways to go about it. The first is enabling Tablet mode. This isn't that great, because you can't get back to the desktop without disabling it. The second is enabling full-screen start menu, but when you do that, your modern apps still start up in a window on the desktop rather than in fullscreen. You can hit the maximize button, which will fullscreen the modern app. There may be some sort of setting to tell all modern apps to start up in fullscreen, but frankly, that should be the default whenever I say to use the fullscreen start menu. Also, enabling Tablet Mode on a PC attempted to bring up phone settings.
I also had a few issues with my Gaming HTPC. The first problem is that Microsoft has some basic drivers for the Intel I217-V NIC, but they don't work. Seriously, Microsoft... how many times do you have to be berated for providing useless drivers? It's far easier for me to tell that I need to find drivers if I see that the device won't install properly. The second issue that I ran into is that I couldn't install NVIDIA drivers for quite a while. The problem was that Windows was that it kept complaining that the found hardware wizard was open (it was not visible
anywhere to me), and it refused to install. My only guess is that Microsoft pushed the drivers, which I already had downloaded, to me via Windows Update and kept me completely oblivious as to what in the world it was doing. Microsoft, I don't need Windows for Dumb-Dumbs -- I want to know what in the world it's doing! Also, my Gaming HTPC is the only out of four PCs (2 desktops, 2 laptops) that will not activate. Two were upgraded from 7, and two from 8.1.
As for the two aforementioned laptops, I haven't had any issues there... yet.