I live on a 40 acre farm, and there is no cell reception at all, so we rely on a WiFi mesh, both inside and outside to stay connected and make calls. We also have the TP-Link Deco, though a different model. We have three inside our house, and two outdoor units, and it covers all of the outside areas we regularly use. The ends of our property don't have any coverage. We have noticed a significant dead zone, despite units being very close, within a few dozen feet or so, yet I have a spot at the end of one of our pastures, which is about 700 feet away, which you can get a usable, albeit slow, signal from. Overall, we're happy, though the dead zones are a bit of a mystery to us.
