Review on E-Z Ink (TM) Compatible Toner Cartridge Replacement for Brother TN450 TN420 TN-450 TN-420 - Compatible with HL-2270DW HL-2280DW HL-2230 HL-2240 MFC-7360N MFC-7860DW DCP-7065DN Intellifax 2840 2940 (4 Black) by Dave Butler

so far so good! I'm spending twice as much to replace the genuine product recommended for my printer. I now have 4 replacement cartridges for half the price! I was concerned about the performance but since I started using this product there is literally no difference in them. I'll reconsider if anything changes, but for now I'm over the moon that I decided to purchase this product!