Working without strul and coverage I can not complain. However, I think it's fake marketing regarding speed.
For me, it was extremely important with high download speed. The apartment I have has 1000 / 1000Mbit and only one plug in a closet far from where I have my PC. Since there were no ethernet cables in the apartment, I want to find a quick wireless connection.
This product was not the answer. It ended up pulling cable throughout the apartment and just using it as router and for other wireless connection for phones and reading plates, etc.