Review on Wi-Fi signal amplifier (repeater) Wi-Fi Amplifier PRO, black by Jnis Gailis ᠌

Greatly boosted the signal of an expensive wifi router. At 20 meters away, there was no signal, as it passed obliquely through three load-bearing concrete walls. The setup took 3 minutes (roaming is turned on with one button), I installed it 5 meters from the router (through 2 walls), and here is the speedtest: the router has 20 Mbps, at the farthest end (where there was no signal at all) - 10 Mbps . Wonderful! Before that, I suffered, trying to configure routers in repeater mode, nothing worked. This thing - turned on, works, forgot.