TL;DR: I sometimes got neck pain while working (at home) and playing games, because I looked down a lot. With this monitor standard, that problem is as good as solved and my workplace looks 'sleek'. Installation was a breeze and can be done by anyone with the help of the manual and a Philips screwdriver.
After installation, both monitors look nice and relaxed, so there is no wobble, no crazy sounds, but just solid. The installation was easy to perform using a Philips screwdriver from our own cabinet.
There are more than enough screws supplied for the installation for the different sizes (thickness) that a monitor can use for the VESA mount, which together with a clear manual and a nice iron frame make for a beautiful whole. It may sound very fussy, but it shows that Newstar has thought about it and you as a consumer can only applaud that.
In addition, it looks sleek and your desk (in my case) is transformed from a bit of a mess to a gigantic space where you can put everything. The foot has enough space to put things that you can easily reach, such as a controller for gaming and a charger for a smart watch ;-).
The monitor bracket is easily adjustable in height. The only minus point, but that is really the only thing and certainly not a big one, is the adjustment of the monitors across the width at the moment they are hung. You have to loosen a bolt and apply a little bit of force to slide the monitor over the rod. I personally don't think they could have done this differently, but that was the only thing that made the installation a little more difficult. As long as you hang up your monitors properly, this is no problem at all. If you want to change the angle of the monitor (vertical and horizontal) this is 'a piece of cake'.
Finally, I wanted to clarify my choice as to why I didn't go for the 'at the time of writing' cheaper brother that clamps to the table (NewStar FPMA-D860DBLACK). I like having a foot that I can put it on anywhere. If I'm going to use a dining room table as a desk, so to speak, I don't want it to be too thick for the clamp. I was a tiny bit concerned about how stable it would stand on the foot before this stand, but all those concerns were gone almost immediately once it was up.