I never would have thought a $3 ink cartridge replacement would work in my Canon MP600 printer. My printer takes (5) separate ink cartridges at $16 each from local stores. These Monoprice.com ones actually work!! I was shocked! My initial order was missing one cartridge. I opened up a chat with Monoprice.com to request the cartridge that was missing be sent to me and they immediately sent me out the missing one. This next part shows you what customer service is supposed to be like. In the chat I gave them the wrong part number by mistake. When I received the wrong part I opened another chat with Monoprice.com to request the correct part. They sent me out the correct part right away without charging me anything! Monoprice.com is awesome!
PROS: They work even though my Canon MP600 printer uses ink cartridges with a chip on them.
CONS: They look like they might not work but they do.