The product has a very good price performance ratio and has been manufactured and delivered to me in good quality. It fulfills its purpose, so I am satisfied with the product.
The system is simply plug in, hang support, tighten the gag, table there! There are two drawbacks Leaving the strut at the table, it is a bit bulky (that makes it "other" support better - for significantly more money) Especially the corner screw you have to tighten. If you forget that, the table top is a bit shaky. Who can live with it, gets a good solid product.