This is a good product and does what it says it does.Only issue is that the bottom joint above the desk mounting bracket points 90 degrees to the left and can't apparently be twisted to point straight into the desk as depicted in the assembly guide. Contacted Amazon chat and they couldn't tell me how to twist that bottom joint.Update: the unit's Amazon Seller, TVMountsTVCarts, got to me with the following helpful advice: "In order to rotate the arm of desk mount in different directions, you need to install it with monitor on your desk. And due to the weight and stability it will be easier to rotate arm." Haven't tried it yet, but this makes sense, and I appreciate their prompt response.