I bought the triple mount for 2x Acer S231HL and 1x Acer KG240. The instructions were clear and the mount was packaged well, but that was about it. The grub screw to prevent the center monitor from angling is impossible to reach. It cannot support the weight of the three monitors listed above, at least not in any fashion I had wanted -- I currently have one in portrait and, while it gets the job done, it's not preferred. If I tried to lay that monitor in landscape and angle it towards me, all three would come crashing down.