Many times it is necessary and correct to evaluate a product based on its purchase price. That's what I will do with this one...
It was purchased for 220 euros, so it is logical that it cannot compete with more expensive sanders such as the FLEX, which is three times the price, and Dewalt and any other that costs over 600 euros.
Positives:
- Relatively lightweight, especially without the extension arm...
- Works smoothly and without vibrations, especially when the bristles in front settle, like all sanders, to glide smoothly on the plasterboard. They always come out smoother than sandpaper.
- Sands well and has a fairly large speed adjustment scale.
- The most important thing is that the dust extraction with a vacuum cleaner connection works very well.
I paired it with a Karcher vacuum cleaner (wd3), which is relatively cheap, and there was no speck of dust during sanding.
- It has an LED light on the head to see imperfections, which is quite useful in the end.
- It is Brushless...
Negatives:
- It does not have a carrying and storage case. For me, it is not justified. Even a BULLE that we had bought for work, because we urgently needed a sander, had a case and it cost 100 euros.
- The extension arm puts a lot of weight on the tool and becomes tiring. Also, the attachment and removal system is annoying. It does not have a lever or something simple to fold it, you have to screw and unscrew it on the body. Also, it does not adjust, so you do not have the option to bring it to the exact height you want. As a result, you are often either too low without the arm or too high with the arm. There is no intermediate option.
- There is no switch for start/stop. Although the system with touch buttons looks quite nice and modern, I would prefer to have a classic switch because as it is now, it is not practical.
Overall, it is a very good purchase. I am satisfied, of course, it will be seen over time how long it will last. (As soon as I come home from work, I blow all my tools with compressed air. The dust they collect is their worst enemy)
So, 4 stars because the negatives of the case and the extension arm prevent it from getting 5...

You work it for a long time without getting tired. From the first time, you understand that it is a professional brushless machine that will give you the desired result. The LED indicates your imperfections. Very important.

Powerful motor, lightweight for its category, I sand walls and I am satisfied, compared to another well-known brand with five times the price that I had and broke, I dare to say that it is a very reliable machine.