I purchased this with the intent of using a horizontal monitor vertically and it works great with one caveat.I was pleasantly surprised by the build quality here. Very solid design. Sturdy material. Holds my monitor perfectly.Only negative is the clamps size. Many desks are .5 inches deep and the clamp wants needs more than that. I ended up cutting a piece of wood I had laying around to add the girth. It's worked out great after that.