What are the terms for the Xbox One X special upgrade offer?

If you purchased an Xbox One X between 5 Nov, 2019 and 31 Dec, 2019, you are eligible to upgrade to the Project Scarlett console in as few as 12 months. Upgrading to Project Scarlett is subject to its release and availability at the time you wish to upgrade. Upgrade requires at least 12 consecutive full payments on your original Xbox All Access contract, and entering into a new fixed term financial agreement with Klarna for purchase of a new 24-month Xbox All Access contract for Project Scarlett, expected end of 2020, which will be subject to Klarna’s terms and conditions. Offer valid for original purchase of Xbox One X with Xbox All Access through 31 Dec, 2019; not available with Xbox One S / S All-Digital. A new application with Klarna, contract, terms, and pricing apply. Requires return of console in good condition or payment of the console balance. See product and upgrade terms at Xbox.com/XboxAllAccessTerms.