Found out not using real HP ink cartridges in my HP Officejet 8600 printer causes a printer/ink error. I will stick with the real thing going forward even though it is more expensive.
I have purchased this ink in the past and it came as advertised. The alternative to the more expensive HP ink is using OEM ink. I have read some of the reviews of OEM ink and have decided to use HP ink. I do wish HP would lower their prices though