After several years of believing I could save dollars buying refurbished cartridges and/or HP knockoffs for my printer, I only found recurring disappointment. I could never monitor ink levels from the printer, as the cartridges did not interface cleanly... and I only ever enjoyed a fraction of the yield advertised (ink left unused when printer sensed empty). Going back to OEM, yes, the cost of a new cartridge is higher ==> but you get to consume the entire supply, and can better predict runout via monitoring on the printer. To me, the extra reliability of using OEM cartridges clearlly supersedes any perceived savings in out-of-pocket cost.
[This review was collected as part of a promotion.] I won't use anything but HP Cartridges in my printer. The ink colors are sharper and last longer than many other options.
[This review was collected as part of a promotion.] I have always used HP original inks and the ink is perfect for my color needs. Online purchases have been fast and accurate.