We have 3 printers in our office and switched to Aztech a year and a half ago. I have to admit I was skeptical that such inexpensive cartridges would work, but I was completely surprised. They work great and saved us a ton of money. I don't think cartridges last as long as HP, but they're still fantastic value. I have never encountered bad or defective cartridges and my printers have not been affected. The print quality is slightly better than HP's, but hardly noticeable. Characters are crisp, clear, no smudges. The item will be shipped immediately. All in all this is a great product.