When this product works it is very good indeed, however the thread quality to tighten the stand isn't of an appropriate quality. When one of the threads was no longer operational on my old stand after a number of years, I bought another, however a thread on the new stand was not operational after a short time. It still works with 1 operational thread, but isn't the way it is supposed to be.
The product is still OK, however due to the quality of this last purchase I have to mark the score down. If you want something more robust, I would look at other alternatives, however if you want something at a good price that "does the job", then buy this.