This item needs a few improvements. Let me say, though, it is extremely easy to assemble. That was the easy part. The problem is that the clamp does not accommodate every desk size. My desk is rather thin, so there was extra space left when the bottom screw was all the way up. It needed to be shimmed. In addition, the arm does not extend as much as I would like. I bought this so that I could place a laptop in front of it and use the larger screen at the same time. I solved both problems (sort of) by putting a black box underneath the arm so that it fit snugly and gave the monitor a slight boost. It is still about 2 inches too short, but it is workable.If these two flaws were addressed, I could give it a 5 star rating. For ease of assembly and price, it serves the purpose