This desktop stand works well.
I used the standard base to clamp it to my desk (instead of the option to drill a hole in the desk) and this is stable with zero wobble in the base. Everything seems well made and sturdy.
Without a mic when you move the arm the springs move it toward a neutral position when you release the arm. After mounting a mic, that stops.
I mounted a Rode NT1-A Complete Vocal Recording on the end. With that weight on the arm, it is nicely balanced, easy to move, and stays where I put it without adjusting any clamps. It has a reach of more than a metre, and rotates very easily - the arm turns smoothly on the base, and the mic turns freely on the arm. Nice and flexible.
One minor downside - the arm has parallel metal bars which move closer or further apart as you move the arm up and down. These have squared edges and you can nip your fingers a bit if you hold that wrong.
Very happy - very good stand