I used to buy this because it was cheaper than buying the individual colour cartridges but now it is no longer available and the cost of individual cartridges is prohibitive - especially because they don't last that long. After seeing the prices at the store, I decided to check Amazon and found it so I was very pleased. I also saw the Smart Ink that fits my printer so I decided to order both products in case the Smart Ink wasn't as good as it claimed. I started using the Smart Ink and it works perfectly and the price is excellent so this is the very last time I purchase HP ink. I has been bothering me for a long time that HP printers are very reasonably priced but their ink cartridges are very expensive so after a couple of years you spend more on ink than the printer cost. I am very happy to have found a very palatable replacement for this "discontinued" product.