The holder when assembled times, works and is stable. One point deduction for a bad, incomplete assembly instructions. I have a Sonos Playbar, mounted on a Samsung 85-inch monitor, which is already on the wall. The design engineer at Hama has developed a clever and very flexible mount. To understand this, one helps the assembly instructions but little. After two hours I was done with better assembly instructions were 30 minutes in there. The Playbar now hangs underneath, something watching television. Before she was attached directly to the wall and the TV, due before the swivel wall mount, 20 cm. The sound is now much better.