For the 226 and 225 series that I have used for a number of years, they have worked very well with only one exception where a cartridge had a very short lifespan. I have recommended these cartridges recently
This is the best bargain I've found in years! It took some persuasion to get me to buy anything not OEM, but I finally did and I've been buying the for a year now. I've never had a problem and I think it was a great decision to switch from the manufacturer's inkjet cartridges to the ones offered on monoprice.com.
PROS: Long lasting, true colors and economical. The printer recognizes the cartridges.