I am also using Linux Mint Cinnamon on my desktop and laptop. I just used the update manager to upgrade the desktop from 18.2 to 18.3 and the entire process took less than 10 minutes and one reboot.
My workaday Lenovo ThinkPad runs Linux Mint with the Cinnamon desktop, Serena release. Rock solid, no issues. Still get the occasional b lue screen when I swap out SSDs for Win 10