excellent for its price, I put a 34-inch monitor at the limits of its capacity (weight 7.8kg with a limit of 8) and no problems. of course, don't expect to change its position all the time; if you wanted something like that, there are the ergotron ones, but they start at six times the price.
negative: I installed it with 3 arms because I have a heavy monitor, and the cover it has to hide the screws doesn't fit; I even cut the 2 bulges inside, but it doesn't fit with the screws.

Very good base, it does all the movements. The only thing I noticed is that the screws need a very good tightening!

Perfect arm, sturdy, holds the screen very well. However, you need to make a small intervention first. Before hanging the screen, in the joint that adjusts to tilt the screen up and down (not the height, the part where the screen looks down or up), you need to add an additional wheel because no matter how tight you tighten the screw, it stops and does not tighten the screen well, resulting in it becoming loose and looking down. If you add a wheel (metallic), then it tightens much better and still has margin. With this small intervention, the arm becomes perfect and I consider it value for money for its quality.

Very satisfied with the purchase. The only negative thing I noticed is that the arm does not fit all the cables from the monitor (2 HDMI, power cable, audio transfer cable) underneath, which personally does not bother me because I don't have cables long enough to "hide" like that.

One arm sits on top of the other when you want to fold it against the wall, but it also stretches a lot when you want it to, it has nice resistances for me, who have a 28-inch monitor, and I feel safe with its construction.

It was placed on a 32" curved monitor and couldn't keep it stable and it would fall forward both when opening and closing it, with the Allen wrench tightened as much as possible. I should add that it didn't close flush against the back wall and had to be slightly forward. I don't know if mine was defective, but I returned it and I'm waiting for a refund. Unacceptable for such an expensive product.

Very good construction... sturdy and easy to assemble with detailed instructions... very good value for money... many adjustment positions... you can use it with either one or both arms... difficult not to suit you... the arm holds up to three cables...

I bought this specific arm to create space in my office and I was very satisfied.
POSITIVES:
It is very high quality and sturdy, it provides multiple viewing angles, and as mentioned before, it creates space in the office.

NEGATIVES:
The only negative thing I encountered is that it can only hold one cable in the cable holders, in my case the power supply cable for the monitor, resulting in the HDMI cable hanging :)

It was placed on a 24-inch screen weighing 3.5 kilograms and works perfectly. Each connection point has adjustable "hardness". The gas spring also works perfectly, the screen moved like a feather before I tightened it.

It's worth every euro.

Quality construction, I have a 27-inch screen and I am satisfied with the support. As mentioned in another review, the system that rotates the screen around the horizontal axis easily loosens. I had to tighten it with an Allen wrench to keep the screen stable and prevent it from leaning towards the desk. Other than that, no issues.

Very good purchase for supporting screens UP TO 29 inches. I can say that it looks and is a sturdy construction, but it is flawless with one big BUT.
Unfortunately, it DOES NOT support the 32-inch screen as it claims, I tried it and it simply failed.

Just an animal. Just think a little about where exactly you will put it on the wall, but still, due to the freedom of movement, you won't have a problem.

It makes all the movements, and it's fine if you have a fixed orientation. However, if you change frequently, you may have difficulty aligning, especially if the screen has poor balance on the vesa mount and you need to tighten the lock more to prevent it from hanging... It takes a while to align it (depending on your level of obsession, of course). The little level it has inside helps

I bought it for a 23-inch monitor. It seems like it can handle much more. I was completely satisfied with the build quality, it is very sturdy and has nothing to do with the cheap ones that cost 20 euros. You have unlimited freedom of movement, you can rotate it everywhere and even turn the screen vertically. If you don't want the second arm, you can remove it and stay with just one. Overall, it shows unlimited adaptability exactly as you want it. The only thing I didn't like is that because my screen is small, the arm is visible in the view, meaning it is somewhat large and not covered by the screen, so it appears as if it is "floating". However, I imagine that from 27'' and above or on an ultrawide, you won't have any issues.

I am almost one month into using...

The installation was easy although finding the placement point was a hassle (my fault for that). The stand supports the 29-inch Ultrawide perfectly and I have full range of motion with ease. Just be careful not to stretch the arm too much as it is easier to see the screen moving. Also, the cable routing it has does not accommodate the power cable of the screen and the HDMI/DisplayPort.

As a bonus, you can use the level included in the package to check if you have the screen straight in your desired orientation.