I'm sorry but I'm not quite following.
I get this part:
Sorry, I misread / typed it's the Arris SB6183 with ~3.8k reviews.
But the only ones I'm finding are listed as Cable modems - "ARRIS SURFboard SB6183 Modem 16x4 Docsis 3.0 Cable Modem- Retail Packaging- White"
The next part, you keep referring to Comcast.
Anyways, this is dirt simple, you get Ethernet and you can't really configure much, put your choice of WiFi / Ethernet router behind it because this does not do NAT for multiple devices on your LAN. This way you own the cable modem, Comcast can suck it when they try to auto-provision the XFinity Wi-Fi which allows any other Comcast customer by default to login to the captive portal and use your Internet pipe because guess what - it's not their managed equipment so they can't do that, don't pay them monthly for their POS all-in-one Customer Premise Equipment, and wait until Sonic can deliver a product you actually want, or perhaps you might relocate somewhere and Sonic will already have a great product available for you.
So I guess you're telling people how to enjoy Comcast if they have it and this isn't a recommendation for a DSL modem or DSL modem/router?
I also detest Comcast. I'm not thrilled with 10-11 Mbps down and 1.2 - 1.4 Mbps up. The work I do requires probably more uploads than down. I just get them going and do something else while the upload takes place. Worst case and I have *absolutely* nothing else I need to do, my kittens are more than willing to appreciate and enjoy the attention.