The HP toner cartridge works flawlessly. While the price for the authentic toners is a bit of a sticker shock, I find it's the better value over compatibles or refills. The cartridge always lasts longer (more prints) by about 15% after the printer "supplies" feature says it's empty. I use that warning to buy my next cartridge but don't actually replace it until the print quality starts to fade. Off-brand cartridges I've tried have all failed in a number of ways before they were recognized as empty, and comparing side-by-side output, the print quality of the HP is noticeably better. Really wish the prices could come down, though.
My HP M452 color duplex laser printer developed ugly vertical black bands on all prints. Nothing I tried would eliminate this problem. Finally, I decided to replace the OEM black cartridge with a genuine HP branded cartridge and the problem went away.
Smooth transaction. Products as described and delivered promptly. My only lament is the cost but I know better than to buy after market or generic brand cartridges.