They work in my HP printer. I tried the cartridges that you sign up to receive cartridges when you are running low on ink. They did not work. The real HPcartridges work great.
The cartridge works but is too pricy to make this a good value. Go is the villain here with a firmware change that overrides the printer setting and forces only new go cartridges. Where are all the publicity hound attorneys general when you have an actual job to be done? Perhaps busy cashing in the lobbyist checks?