A lot of the value built into Windows Admin Center has to do with it being a remote-management tool that can have a lot of upside in a modern IT shop, including implementing best practices by not logging directly into servers, bringing flexibility to the management architecture, and performing admin tasks from high-DPI or touchscreen devices.
Considered a complement to System Center, Admin Center is a free app, downloadable here, that runs in a browser and can manage Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows 10, Azure Stack HCI through Windows Admin Center Gateway, software installed on Windows Server or domain-joined Windows 10.