The ink is impossibly inexpensive. I have done personal side-by-side comparisons and have a hard time telling the difference between this and OEM ink. Sometimes the cartridges don't last as long as I think they should, but I don't really pay attention to my printing habits very much. In the end though, I just always keep at least 1 on my shelf and couldn't be happier.
I give 10 stars for MonoPrice's service. They made a mistake initially sending the wrong cartridges, and immediately sent me the correct ones. I give 6 stars for the unknown future of the cartridges not yet used. Thus my average rating of 8 stars.
PROS: All the different color ink cartridges seems to be working well. The Pricing I found excellent compared to ink sold in Hawaii. I am hopeful that all the cartridges work perfectly, because I purchased at least a one year supply.
CONS: I did notice that some printing seems on the light side, and I cannot adjust that darker on my printer. However, most print jobs appear normal. Time will tell if I have any defective cartridges, because I have a year supply. I hope MonoPrice will replace defects even beyond 120 days.
I was apprehensive to try these, but at a fraction of the price that the BigOfficeStores are selling at, I took a chance. I bought and replaced the Cyan, Magenta, and Yellow all at once (but *not* the Black, that's still the one that came with the printer). It's been a few weeks now, and everything seems to be working fine. When the black gets low, I'll get that one from Monoprice, too.
PROS: Seems to work well with my Brother MFC-J825DW. Excellent price.