Now it is easier to initially install than Windows. Where I find it lacking is that tweaking of the setup after installation that has lagged behind. Windows has the control panel. Each X windows manager has its own control panel which all seem to miss this or that feature. I'll admit, it has been a few years, so this may have improved, but Linux on the desktop just needs easy, graphical configuration tools for everything and it will be ready for everyone to use. Microsoft has given everyone else a window of opportunity with the debacle of where is this setting in Windows 8.x.
All this is irrelevant. Linux already is used heavily by technical people who bother to install their OS. Vast majority of people don't install their OS and use whatever OS vendor installs. Windows managed to get its market share by dealing with PC vendors. Quality was never something OSes competed on. Subverting vendors with evangelism is only thing that matters.