the cable should be laid between the wall and the ceiling panels, and then disappear invisibly under a cornice. Unfortunately, the cable is then not as flat as expected and accommodation prepared more problems than expected. The quality is excellent, however, as it is very flexible and can be adapted around corners well. As expected from a LAN cable is the transmission of signals is no problem. So for me a buy recommendation, if it is laid on the floor or ceiling installation in sufficient distance (about 3-4 mm) is present between the wall and ceiling panels.