This cartridge works the way it is supposed to, and is a much better value than the smaller Brother cartridge.

A great great value for the money

I therefore rate Amazon.com and their offering of the TN580 the Best VAlue, Price and Service on the Internet today

By far the best value of the two.

Great value for the reduced cost I paid.

Good value for the price.

I also rate the Brother 5250DN laser printer the best value duplex (2 sided) printer on the market.

While this is more expensive I feel that it is a better value.

Works as it should.

By the way, that new toner worked as it was suppose to.

Works as it should.

Good as always.