I have read many reviews about using non-name brand toner cartridges and warnings against purchasing them as well. But for the price difference in purchasing a repurposed toner I could not pass up trying it. I got 2 cartridges for less than half the cost of one name brand cartridge. I had no issues with installing and my printing so far has been perfect. No difference whatsoever. I am happy with this purchase especially because it was so inexpensive.