After reading the very different recessions on these cartridges, but outweighed the attraction of the unbeatable price, and I ordered the set as "risk department". The delivery itself went quite fast within 2 business days. The product was delivered a little lousy packed. Well, let's see what it is good ... I just installed the cartridges in my HP LaserJet 100 color MFP M175nw. A little patience is necessary to bring with you, because the printer emerged after inserting a cassette a few minutes in its operating system, displays the message "Initialization" and are strange noises. After that follows a phase of "Calibration" and then you see with joy that the black box on the display above the respective color code marks the successful installation and detection of the cassette. After you choose the next color with the cassette selection button on the printer and the game starts over. All four ink cartridges have been identified. As already come to a pleasant feeling, because you still get a second black toner cartridge for additional reserve. The expressions look good. An obvious difference to the quality of the expressions of the old original cassette can not be seen. Toner fog, blurring or other weaknesses that can be attributed to the toner, I do not see for the first proofs. Unfortunately, I lack a direct comparison with old photo prints. Photos but clean out. The typeface is razor sharp. I can definitely tell nothing that speaks against a purchase here. Obviously, it must at this product a scattering of quality give, otherwise the negative Recessions are not directly explainable at least for me.