Currently, I have a 2wire 3600 HGV. It's a modem/router combo provided with AT&T UVerse. AT&T's hardware is years behind many of the other ISPs so there is a limit to the number of NAT connections and devices that can connect. Also, it is on Wireless G. Now, I am looking at adding a Wireless AC router behind the 2Wire. It would mostly likely be the Netgear Nighthawk. What are the benefits of adding a Wireless AC router?