Twice I've had black HP replacement cartridges from Inkgrabber leak substantially when the packages were opened. I have two shirts with permanent ink stains as well as black stains on my desk. Customer service only offers to REPLACE the faulty cartridges if the customer takes the time to fill out a form and return the items by mail within 1 year of purchase. That seems like a lot of work to receive replacements that will potentially leak like the others. Inkgrabber does not make any effort to REFUND the cost of the faulty cartridges regardless of the amount of damage a customer sustains. Additionally, customer service suggested the leaks were my fault because I didn't open the ink properly. That seems absurd since I've never had any cartridges from HP leak. One other downfall -- my printer can't assess the ink levels for these recycled cartridges from Inkgrabber.