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.
Was very impressed with the price of the cartridge compared to buying new. When I went to install the cartridge, there is a thin film over the nozzle for the in that was difficult to puncture. It did fit the printer and I was able to break the film and appears to be working just fine. Bought this as a trial cartridge and after realizing that it would work just fine, bought the remaining cartridges for the printer, all for less than the cost of one new one. Will definitely buy again.
PROS: Inexpensive, good quality
CONS: Thin film over the nozzle made installation a little difficult