I have got to say I was rather surprised by the affordable price of the Canon S-35 OEM Black Toner Cartridge. I used to envision getting a toner cartridge that would be able to yield up to 3,500 pages especially for a business like mine would be too luxurious, but am glad a pal recommended I get this product and all worked to my benefit. Now I can reap even more returns from my business as the printing costs have been reduced. The free shipping is also something I really appreciated. I am now thinking of purchasing another cartridge!