Customer Rating: 
Summary: brother TN580 High Yield Toner Cartridge BRAND NEW IN RETAIL PACKAGE
Comment: The cartridge is full retail product and almost half the cost of the same at leading office supplies. Shipping was fast and also free via Amazon's free shipping option. The item works perfectly and was an excellent price at $68. What else can I say, great price, full retail product! Thanks Amazon.
Customer Rating:
Summary: Refurbished worked great
Comment: I freaked when I received one of the refurbished cartridge from one of the vendors in the used and new vendor section. It was quite different looking from the original, but it fit just fine, the print quality is great, and it was half the price of the new one. The cartridge my Brother HL 50250DN printer came with lasted over a year (with my wife being a writer!) and this high capacity cartridge is supposed to have twice the capacity. 1/2 cent per page!
BTW the Brother HL 50250DN is a great duplex printer and i can even feed card stock through it with no problems.
Customer Rating:
Summary: Genuine Brother product
Comment: In the lab where I work printers are under heavy load from multiple users, and Brother HL-5250DN is the best of all printers we had so far. Toner cartridges need to be replaced often. I believe that a genuine toner cartridge from the printer manufacturer is always better and safer for the printer than it's cheap substitute made by who knows which company. This is why I always buy GENUINE BROTHER TN580 cartridges. I never had problems with them.
Customer Rating:
Summary: Do NOT buy generic toner cartridges
Comment: I purchased a generic toner cartridge for my Brother printer. It did not fit properly, and the printer made some grinding noises. Play it safe and buy the real brand-name cartridge. It will cost you LESS in the long run.
Customer Rating:
Summary: Toner Cartridge - good
Comment: Worth the few additional bucks this manufacturer's cartridge costs - over the 'aftermarket' refills. The quality is better; we'll find out if it will last (print) as many pages as advertised.
Summary: brother TN580 High Yield Toner Cartridge BRAND NEW IN RETAIL PACKAGE
Comment: The cartridge is full retail product and almost half the cost of the same at leading office supplies. Shipping was fast and also free via Amazon's free shipping option. The item works perfectly and was an excellent price at $68. What else can I say, great price, full retail product! Thanks Amazon.
Customer Rating:
Summary: Refurbished worked great
Comment: I freaked when I received one of the refurbished cartridge from one of the vendors in the used and new vendor section. It was quite different looking from the original, but it fit just fine, the print quality is great, and it was half the price of the new one. The cartridge my Brother HL 50250DN printer came with lasted over a year (with my wife being a writer!) and this high capacity cartridge is supposed to have twice the capacity. 1/2 cent per page!
BTW the Brother HL 50250DN is a great duplex printer and i can even feed card stock through it with no problems.
Customer Rating:
Summary: Genuine Brother product
Comment: In the lab where I work printers are under heavy load from multiple users, and Brother HL-5250DN is the best of all printers we had so far. Toner cartridges need to be replaced often. I believe that a genuine toner cartridge from the printer manufacturer is always better and safer for the printer than it's cheap substitute made by who knows which company. This is why I always buy GENUINE BROTHER TN580 cartridges. I never had problems with them.
Customer Rating:
Summary: Do NOT buy generic toner cartridges
Comment: I purchased a generic toner cartridge for my Brother printer. It did not fit properly, and the printer made some grinding noises. Play it safe and buy the real brand-name cartridge. It will cost you LESS in the long run.
Customer Rating:
Summary: Toner Cartridge - good
Comment: Worth the few additional bucks this manufacturer's cartridge costs - over the 'aftermarket' refills. The quality is better; we'll find out if it will last (print) as many pages as advertised.