Very good for the price! Personally, I was thrilled. Before, I was throwing away 20 euros. The printer recognizes it, no problem!

From the first print it was obvious that it was not filled well! It is now at 77% and the result is quite faint! I don't expect perfection from a compatible toner but not like this!!

For the price, it is excellent. The only drawback is that it slightly fades the letters compared to the original.

In Samsung laser 2825 was immediately recognized without any error message, and this was my biggest concern. Theoretically, it is for 3000 prints, but I still don't know that. It seems like an excellent purchase and very economical compared to the genuine one.
Update 15/7/2023 I bought the same toner twice more that I had in my favorites, and each time it came different, from a different supplier each time. The first one was excellent and produced around 2800 prints. The second one was around 1700 and with 35% remaining, it started leaving large gaps, resulting in unreadable text and requiring a replacement. The third one I received, after 2 days and around 80 prints, needed to be replaced because I couldn't read any text at all. Therefore, it is a big risk to purchase, unless you find a specific one that does its job well in a store and stick with the same supplier and manufacturer/refiller of the toner

While the first one that was purchased was flawless in printing, the other 2 that were purchased had unacceptable print quality (lines and blurry prints) despite all printer settings being set to full. In the end, we will buy the original one that is flawless and will not go back to the compatible ones.

It was immediately recognized by the printer.
Good prints, just like with the genuine toner.
So far, everything is good.