Usefull but not perfect
As stated in my review of the WS7500 workstation, I bought two of these corner expansions to add to each end of the main desk for more work-space. The wood is the same quality as the main desk but the metal hardware is not at well built. The leg connect to a mounting flange with one nut and bolt which both are easy to strip. After I got it as tight as I could the leg still wobbles from side to side, this was repeated on the other piece too. My biggest issue with this product is the connection hardware to the main desk. It consists of two pieces of soft metal, pre-drilled, and short wood screws. Trying to mount this by myself was a hard task trying to keep the product where I wanted it while drilling guide holes for the screws. In hindsight it would have been easier to put the mounting brackets on the main desk first then let the corner piece rest on those. Even so, If I had the need to disassemble the corners from the main for a move, I doubt these little screws will hold as well on a second install in the same holes. It would be better if both the main desk and the corners had pre-installed anchors for mounting as those would hold better and easily removed.