The worst thing that exists.
I bought it, the seller never told me that it is only for water-soluble paints, so I used it normally with solvents. You might say, well, didn't you read the instructions? Of course I did, and it said that you can use it normally with all colors (there was a different manual inside the box). This, of course, caused it to break. I went for a replacement, got another one for free, and again the seller didn't tell me anything about using it only with water-soluble paints. As a result, the second one also broke (again, there was a different manual inside the box). The best part is that the seller called me after a week and asked me for the money for the second gun because the warranty didn't cover it, as this gun is only for water-soluble paints. So I called the importing company and they told me that it's my fault that both guns broke and that I have to pay for them. Of course, it's my fault, who else could it be? Those who don't inform or those who put different manuals in the boxes.
Damage cost: first gun €45, second gun €45
Lost paint in these attempts €100, and the best part is that painting expenses went for the machine that was intended for €200+
Total: €390+
Oh, I forgot, the machine obviously needs to be repainted from scratch because the result was terrible, so I have to spend even more money and buy a proper paint gun.
Don't buy it unless you want it for water-soluble paints. Don't make the same mistake as me :)