Serious question: whose WiFi is not working, to the degree that they think, "I really need to get a modern router to make this Internet thing actually work." I'm seeing about a dozen fancy modern wifi routers all trying to solve a problem I'm not sure exists.
All the experience I've always had with wifi in the last ~10 years has been abysmal. I play games and make a lot of use of internet (downloading, working through ssh sessions, etc) and the slight hiccup and packet loss is very evident in my system and frustrates me a lot. When I am playing games and there's a slight interference, I notice immediately. When I am chatting on irc through ssh and my keystrokes don't go through due to spotty wifi, I notice immediately. Sometimes it's unbearable. I think this idea is really great. I had to finetune my wifi so many times in all the apartments I've lived at. Using channel analysers to pick the correct one every once in a while (due to recurring congestion/interferences), living in a very crowded area I often have ~30 access points broadcasting and cluttering and it's really obvious in the performance of my network.
In the last apartment I was staying at (moved out a few days ago), every time my flatmate at the opposite side of the house would open the living room door to walk to the bathroom, my signal would experience a latency spike of 100-200ms (average would be 10-20). We had a pretty poor router, to be honest, and I was at the other side of the apartment, but it was simply ridiculous. At times it would just refuse to work and I couldn't browse the internet for a few minutes simply because of too much congestion.
I think this idea with multiple smart access points is simply genius and while I plan to use wired connection for my next apartment, I'm definitely looking forward to a better implementation of the currently abysmal wifi that we have in general.