Maybe I've had bad luck with Windows 7. People talk about its reliability and stability as though the point is axiomatic. But every Win 7 PC I've ever used was prone to freezing up-- and I've used several very well-specced models. I've also found few browsers that keep Windows 7 happy for extended periods-- at least not if you regularly have 80 open tabs, like I do. Windows 8.1, for all its faults, doesn't give me these problems. With earlier versions of Windows 8, I can see why many people didn't see the upgrade advantage; possible increases in stability and performance were offset by usability concerns. But with Windows 8.1 update, I think Microsoft's moved beyond that stalemate. The OS could (and should) be easier to use, but barring applications compatibility, I think Windows 8.1 offers advantages, even if you don't care about hybridity. Those advantages won't be enough for everybody-- but I think Microsoft's made solid progress on the tech side. The PR side is a different story.