

Three Wi-Fi routers are placed in a room.
I’d be interested to know how well this works if there aren’t 3 (!) hotspots in 1 (!) room. If that is a hard requirement for it to work accurately, I don’t see many applications for this technology. At least not in its current version.
IMO there are sufficient search engines to find products in online shops, to check availability, compare prices etc.
I see the main selling point of Amazon in the huge assortment (you can get everything in one place without shipping fees), the user ratings (although the quality massively declined during the last years) and the fast delivery. I’m boycotting them for around one year now and everytime I need to order a strange combination of things I’m getting reminded how convenient it used to be. I don’t intend to order there again, but I definitely need much longer to buy stuff now.