The Canon brand of this product is 3 times the price of the Linkyo brand. I have only been using it for 2 weeks but the quality is equally good as the Canon. My only concern (and one I won't know the answer to for awhile) is longevity.
Works fine, for less $$
By Scott on 12/31/2012
Genuine Canon cartridge failed, causing the printer to display an error message, which in turn kept the printer from going into power-save mode.
Inserted Linkyo cartridge & restarted. Message is gone, printer goes into power-save mode like it should, wakes up like it should, and prints like it should.
Quality of prints on 92 brightness, 20lb paper is the same to my eye as it was with the Canon cartridge.
It's only been in a week, so I can't speak to longevity. Went with the lower yield just in case this one fails like the Canon did. Would be a shame to waste a bunch of unused toner in a defective cartridge again...