I've had nothing but trouble with these.
Feeling frugal and environmentally virtuous I bought a few. They were all faulty in one way or another ~ faint print, impossible to align for perfect color registration, signalling empty before empty, etc.
My frugality turned out to be expensive and my environmental virtue was turnd on its head because I tossed these things out well before they were empty or even used and bought original HP carts.
Maybe I got a bad batch, but I'll never touch them again.