My beef is mostly with the lack of consistency with the control panel and settings. They have "Win10"ed most of it by now, though, but for several years you had

My beef is mostly with the lack of consistency with the control panel and settings. They have "Win10"ed most of it by now, though, but for several years you had this weird, often overlapping set of UIs from Win7 and Win10. Minor things like Win10 vs. Metro are less obvious, though.