If you have a limited or heavily utilized bandwidth situation adding Windows 10 computers to your system may have a bad influence on your network despite the claims Microsoft makes below.
"Windows Update Delivery Optimization lets you get Windows updates and Windows Store apps from sources in addition to Microsoft. This can help you get updates and apps more quickly if you have a limited or unreliable Internet connection. And if you own more than one PC, it can reduce the amount of Internet bandwidth needed to keep all of your PCs up-to-date. Delivery Optimization also sends updates and apps from your PC to other PCs on your local network or PCs on the Internet."
This guide Windows Update Delivery Optimization: FAQ outlines steps to change the Windows 10 update configuration.