It's a tough one, but watch out for the angle!
Having had different types of systems with 24 inches, I can say that it is the strongest I have owned. In this case, with 28 inches, you realise (too late) that the maximum default angle is more or less 15/20°. It is limited by a hinge stop system and by the maximum position of the side screens, in fact the more angle you take the more the axis is shifted towards the outside.
So for me, who needed 45° between each screen, in order to be able to place them on a corner desk, I had to make some modifications by re-drilling the support plates of the side screens in order to create a 2cm offset from the initial drilling.
The rest of the product is really top quality.