Simple, effective product, good value for money
Installation is straightforward, as all the screws are supplied with the product. I used it on a plasterboard wall with Molly-type wall plugs, which was quite sufficient.
I had a problem with the two screws that are supposed to secure the television (to prevent it being lifted after it has been fitted): these screws are not accessible when the television is tilted. You'd have to screw in from the bottom, using a very long screwdriver that couldn't find a gap between the wall and the television. You can secure it in a strictly vertical position, but then you have extreme difficulty tilting it forwards and tightening the screws designed to maintain the tilt angle. I secured it from above, with a piece that prevents the TV from being lifted.