Done the work, but it needs constant adjustments and I end up having to buy a better one because the adjustments just take too long. The holes in the flat metal pieces that hold the arms and allow the ball joint to rotate were not drilled in a straight line. so everything is a little crooked and the clamps still come out weak no matter how tight I tighten them, even with pliers. The levers that hold your project in place are held in and out by friction only and require pliers to tighten to hold it by the ball joint and a magnifying glass is utterly useless and acts like a cheap water bottle. a cap that if you screw it in too tight it pops off the threads and backs out so it wobbles all the time and in the end i just had to take it off because it kept falling on the table when I pushed it sideways. They have done many projects but need to be kept at different angles. So if you're doing something that doesn't require too much arm movement you'll probably be fine, but with something more intense, or if you're just not interested in stopping and fixing it every time something goes wrong, look elsewhere .