I live in an older home with four floors, and the range extends well to the entire home (placed the router on the 2nd floor) as well as the patio area. I especially like that it assigns the band wave (2.4 or 5ghz) based on location.
Setup was very easy with the app, and nicely let's me monitor the network.
One complaint is that when you login to the router page from your browser, the password is displayed to you. I would think that good password security means that the company should hash the passwords and never be able to display them. Potentially this could be a security risk, but I'm no expert.
Previous isp-recommended router experienced weak signal, even purchased separate range extender, which did not solve all the problems. No need for extender with this router. Strong, fast signal throughout house, even in basement with router located on 2nd floor.
My old router simply couldn't keep up with my modem; however, now that I have the Nighthawk I am able to download apps, play games without lag, and stream videos faster than ever.
I had an old router and was experiencing many long network dropouts. This router has greatly improved my network performance. Definetly worth the cost.