SO has been complaining about his (admittedly terrible) old laptop dying so I'm installing linux mint over the old Windows 10. He's not a tech-minded person so I'm keen to see what he thinks of it.
I'm still running updates and installing a couple of extra drivers but it's definitely much snappier than what he had before. And his Logitech trackball now has a battery meter in the system tray, which it didn't on windows, so it's possible he'll end up preferring linux.