I've owned the same Brother Fax/Phone/Copier machine since late 2000. These cartridges are the only ones I have purchased over the years without any problems. As the years have passed, the price has dropped, but the quality hasn't. As always, Amazon provided prompt shipping. The cartridge lasts several months with regular use. I haven't kept track of how many pages it is god for, but the advertised 250pgs sounds about right. And you can't beat the price here at Amazon. I have no problems recommending purchase.