I'm surprised by the need of so many reboot, I use https://ubuntugnome.org/ LTS as my main desktop, and so does my wife and kids and have not experience such issue.

I cannot use the UI in OS X (my brain cannot adapt to it somehow), but have to use MS Windows 8 machines for work, and am always surprised by how inefficient their UI is, considering how much money has been poured into it.