We have switched from Xfinity to Netgear modem/router because there speeds of wifi were very limiting and with netgear we have better dual band wifi. we have multiple Netgear AC1600 wifi routers in are home and network switches.
I have 10 WiFi Devices linked to this router. The signal is strong in every location so I stream over 200 mbps. This is the best wifi router I have ever owned.
I bought Netgear router/modem because of its features. I have NEVER had issues with it. I run separate networks for me and for guests. They can always logon, but are separated from the more sensitive folders and information. Works great