i use it at mine parents computer - its good and you are right - its 5year license
i have bought it on antivirus4u because i want to try it and it was for good price/5year
only issue i found (again - its on mine parents computer, so no warez, no cryptocurrency, no black side....nothing bad at all

))
is that you have to manually upgrade for major version (2018 to 2019) - the virus definitions are still actual, but if there is new version of IS, it doesnot update itself to the newest (main program i mean)