Unless you are looking at something else with the same descriptive name I am looking at.....it does not "brings the interweb using your electrical wires."
It is a network expanding device, without re-wiring the house.
Sometimes good, sometimes bad, and one of the issues is bad house wiring (oh, like some ancient house in Ontario with broken door hinges). And once the signal hits the powerline transformer on the pole outside your house, the signal dies....as it does often with a surge protector.
https://www.makeuseof.com/tag/8-things-powerline-adapters-need-know-first/