After having bought "compatible" cartridges in the past,which I found didn't last very long (in spite of what was claimed) I purchased the genuine cartridges and I found that they lasted very,very much longer. Also the "compatible" cartridges were not "recognised" by my HP all-in-one printer, which meant that I had no idea how much ink was being used, or left in the cartridge - whereas both those issues were corrected with the genuine HP cartridges. All in all, I would recommend anyone to purchase the genuine article. They may be dearer to buy, but in the long run, the genuine ones work out much cheaper-plus the added benefits I mentioned above.