Have run through several of these cartridges and never had one fail to function. Good quality black printing. I might question the yield but my printing is so widely varied, as it is, that it would be a difficult issue to nail down. Although I have not been disappointed in the number of copies I have gotten from their toner cartridge. One thing I don't like about this toner cartridge and the laser jet I use them in is that there is no taping over the ink window and continuing to print like with older versions. When the laser printer says the cartridge is out there is no use arguing with it just put a new one in.

I was a little concerned at the product arriving in a large outer box it could slide around in, but it at least comes packed pretty well inside the original Brother box, and it does appear to be the genuine article. I have used it for a couple of weeks and it works fine in my HL-L2320D laser printer. Thanks for the affordable toner cartridge, and the fast shipping! If I still can't find a decent price for the TN660 next time, I might consider two of these from the same seller, and just hope that the packaging won't be an issue again.

It says that it will print up to 1200 pages - I ordered this on Saturday, got on Sunday have printed 412 pages and the ink is out already. I took the cartridge out and shook it just to see if I could get more out of it and nada. I know this is not Wal-marts issue and I've used this cartridge before but never kept count of the pages. You can bet I will be now! I am not a happy camper at the moment!

Genuine Brother toner is always as good as expected, unlike some of the generic refilled cartridges out there. It's worth spending a couple of extra dollars for quality.

This was an Brother OEM product at a very attractive price that I was ale to order on-line and pick up from the store later the same day. What could be better than that?

Prints well but didn't even go through one ream of paper before it ran out. I would say this is only good for 300 pages :( Very unhappy - the only reason I got a new laser printer is to save on ink and it's not saving me anything.

I changed cartridges to print a shop manual. At page 374 the change cartridge indicator came on and the prior few pages were of poor quality. It does have a lot of pictures, but I didn't even get half the number of pages it said.

Good price but runs out fast. When I can't get to Best Buy to purchase the bigger one I use this toner.

This was the size it said went with the printer I got. I just now need to replace the ink and lucky me this is not the correct one

Super simple to install, immediate printer capability, very affordable. I wish all things in life were as effortless as this.