Rating: - Works great in L7580/L7680
This cartridge is shown on HP's website to be fully compatible with L7580 (which I own) and the near identical L7680 printer. I use it and it works great and is a good deal.
Rating: - large/regular
This product is probably a good product. Amazon is a good website, I know from experience. The seller is good. But twice I have purchased an ink cartridge that is too big for the printer. When the description says "Large", most would probably know what that means however I'm thinking large is exactly what my new printer is compared to the free one I had previously with the purchase of my computer. The ink cartridge I received twice in the mail, by my mistake of not reading amazons description, was an XL ink cartridge. I don't know if this has happened to anyone else but when it finally gets to you, the size does make a difference. Perhaps a little more separating from HP and Amazon for the L7680 ink cartridges would help. Its a great product and there are probably a lot more users/customers out there.