Well, the tool is really a gun...
I have had it for 2 years and I can have a full picture of its reliability.
It works in a 90 sqm stone house with 60 cm walls, those who know understand, it is at a distance from the Cosmote speed port Plus 2 router somewhere at 10 meters and not in a straight line, on the contrary, there are two stone walls in between as I mentioned above and the lights are all blue 24 hours a day.
In case of power outage, it automatically recovers in 20 seconds.
It works continuously without any problem.
Its cost is nothing at all, especially for what it offers... it literally saved me because I can monitor the cameras throughout the house and the external courtyard, etc.