While this unit I feel is not as good as the Loctek ones they do work and it does feature one little nicety that the Loctek does not, the VESA plate is actually attached to the monitor after you take the monitor stand off, you then attach the arm to the desk and the monitor clips into place in a receptacle which is strong and sturdy but still easy to get off. While this arm is adjustable for tension and/or position IMHO it doesn't feel as ridged even after adjustment as the Loctek but if you are after a slightly cheaper unit this is still the way to go.