I bought this, and while the quality seems fine for the price, be aware that it is very, very bouncy.
If you touch your phone while mounted in this stand, your phone will bounce for 10 seconds after you finish messing with the camera controls.
If you are using the work surface that it’s clamped to, it will bounce.
If you have it mounted to something you’re not touching, and you can wait for a few seconds to start filming, then it works fine and it’s very adjustable.
For reading, it works fine.