$70 per year it's not a few bucks and is waist of money for someone who uses office apps infrequently.Office 365 costs a few bucks, but it's good. Another option.
They're better off to use the apps. in G Drive which is free.
But if you're a power user and is proficient in VB programing language to manipulate data and automate tasks within the office apps then $70 bucks is bargain.
Another minus I see with 365 that it is cloud based service and if you decide to cancel subscription you might loose all the data.