Cons: The cartridge unexpected started printing with a faded area down the left side of the page after about 3,500 pages. I print quite a few envelopes and the faded area was about the location where the envelope flap is. The monitoring software indicated 25% cartridge left. I contacted Samsung to let them know if that I had an issue, and to find out If this is a product defect or unique to my cartridge. They could not have cared less. They said it was not their issue, contact the reseller.
So if you do a per page analysis and determine that it is cheaper to buy a high capacity cartridge, reconsider that if there is a possibility that there is a defect, and you only get the same amount of pages as the regular cartridge. An issue, which Samsung did not deem worthy of their time.
I myself just ordered a regular cartridge and will avoid the higher capacity ones.
Pros: Quality output
Cons: At 6% toner remaining printer shows 3392 Impressions. Granted this was without eco setting so this may have a direct correlation to impressions