Plastic and shitty is the general impression. With about 5-7m between the points with a clear view or with a simple wooden wall, you do not reach full specified speed. The first start-up was easy but only 2 out of 3 were updated to the latest FW. The third only wanted to be updated after a factory reset. The settings you can make via the app are extremely simple, forget the idea of being able to set which bands you want to run Wifi on. This requires that you log in to its local interface via a web browser. And then you are greeted by a settings screen ala 2016, albeit with a little more choices than what the app gives you. If you reach 100Mbit with these, you should be satisfied. If you expect higher speeds, buy something else. I'm returning COVR.