This. I have a Netgear CM500 cable modem with Comcast and just bridge that to my
Fortinet FortiWifi 90D. I personally use the AC Apple Airport Extreme (x2) and Time Capsule (x1) for a mesh wi-fi network. I had a NightHawk and deployed one at my bro's house - great units. If you're looking for quality and an "easy" button the
Google wireless router seems to be solid. The "hardest" part for you will be to configure that bridge mode on the Comcast router. Do an "ipconfig" from a command-line in Windows and see what your default gateway IP address is, try to browse to it using http:// - I'm guessing Comcast left it unprotected (poke around in there and see if you can find bridge mode - backup the config and/or take screenshots so you can roll back if you F up or just call Comcast if you're not sure). If it is protected - you'll probably have to call them if you don't know the password. Set your new router (NightHawk, etc.) to use DHCP on the Internet port (or WAN) and you're set. Very easy even though it sounds like it is not by reading this.