Review on 15-Pack RETCH Compatible Ink Cartridge Replacement for HP 564XL 564 XL, for DeskJet 3520 3522, Officejet 4620, Photosmart 5520 6510 6515 6520 - Includes 3 Black, 3 Photo Black, 3 Cyan, 3 Magenta, and 3 Yellow Cartridges by Eric Amiradaki

This product exceeded my expectations. Most of the time, when you buy cheap, you get cheap. I have no problems with these cartridges. They fit my HP 7520 pscf and photo printer just like the very expensive HP ink cartridges. I use a lot of ink and my printer is used several times a day. And sometimes I print photos. Didn't notice any difference in quality. Most of the time I print a lot of documents and I'm not sure if it's fair to say there is a difference between these cartridges and others. I don't print in high quality most of the time, so I honestly can't say if there are better options if you want to print in high quality all the time. At the same time, for the price, it's worth trying everything your printer needs. Great for my purposes and I will order again.