I had nothing but problems with typical consumer hardware. Having to restart routers all the time. Dead spots. When family would visit (both my wife and I have large families) they would connect at least 2 devices each to my wifi (tablet, phone, laptop, etc). My wireless would just tank. They would always ask me why my internet was so terrible.

Last year I bought an Edge router and a higher end Netgear hotspot. Works wonders separating things out and letting me easily add separate "Guest" wireless networks on different channels or whatever using my older devices.

If I were to have done that change now I would've definitely used a device like Google's. But to do something like that would've been outside my budget. I wish I could easily add new hotspots that just seamlessly worked so that I could eliminate the dead spots on the edges of my house and in my yard over time.

Maybe there's something I don't know already and I don't need Google's new Wifi System. But it definitely seems to fix my usecase.