Ordered the unit to replace an aging desktop.  The size is perfect for home with enough power for 99% of users.  I used the desktop for very large excel spreadsheets with no slow down.  The unit came with Windows 10 professional and used the Windows update to upgrade to the latest version of Window 11 as the hardware is compatible.  The unit is quiet and low power consumption. Vendor communication before/after the sale was excellent. Would recommend the vendor.