The ink is comparable terms of quality with the Origianlen. The printouts look very good, and ink is dry immediately. I use an XP-750th The price make the difference ;-)
Now for the not so positive;
1) The cartridges are not recognized as original and you mus confirm a uniquely appearing MessageBox (one for each replica cartridge). The amount of ink but is displayed correctly.
2) When removing the cap from the cartridge runs out of ink. So best open through a Mülleimner or paper, wipe and quickly insert it into the printer. And do not wear expensive clothes there!
However, since the cartridges deliver excellent Ergbenisse the pressure, cause any problems in operation, and cost only a quarter of the original, I forgive nevertheless 4 stars. Dignity / she will buy again.