The ink cartridges work for two months in our super Canon MG5550 printer. No problems, all the cartridges are recognized and there are no problems with clogged nozzles or the like. Only when Einstezen the cartridges in the printer must be careful, better put on gloves, you can easily get few drops of ink on your fingers. As I expected, the prints with the ink are significantly paler than with original ink. For documents sufficient but not recommended for photo printing.
For the price I can live with it and would buy again and not hesitate to recommend the cartridges.