Have been wanting to get Microsoft Office for awhile and couldn't afford to do the monthly subscription. So glad I was alerted to this deal from groupon. I got the first tier one that is good for one PC. I had to uninstall Microsoft 365 and One Note manually, before I could install it. Also, it gives you a redemption code that you have to use through groupon's redemtion page before you get your product key. It doesn't tell you that explictly so I thought I would mention it here in case people get confused like I did. However, after redeeming the code, and downloading the service, be sure that if you have Microsoft 365 and One Note Install to uninstall them them you can install the program. I also loaded up word and went to account to put the key in so that you can register the product key. Overall, great purchase and now I don't have to worry about a monthly fee. Also, it's only good for one PC so if you get a new PC, you'll have to transfer it over to the new PC. Hope this helps.