Also see Google Wifi review roundup (Computerworld), Google Wifi Review: Wi-Fi that Works (The Verge), and Google Wifi Makes Wireless Internet At Home Suck Less (BuzzFeed)
"Google Wifi is not the first mesh network system out there. As I said earlier, Eero and Luma promise the same exact thing.Google Wifi review: The easiest, cheapest way to fix bad Wi-Fi
I've heard mostly good things about those products and how they bathe your home with faster, more reliable Wi-Fi. But they're just too expensive.
A single Eero costs $199 and a single Luma costs $149. Google Wifi is less than both at $129. Luma is priced the same as Google Wifi for a 3-pack ($299), but a 3-pack of Eero costs a whopping $499.
Google Wifi is all the more compelling (even if you don't live in a large home) now that Apple is reportedly no longer making its AirPort Wi-Fi routers.
If you want your Wi-Fi to "just work," I can't recommend Google Wifi enough."