Canon inks are annoyingly expensive. I have taken a gamble with these lower priced compatible inks. The build of the cartridges are of a poorer quality, but at the price charged, it is to be expected. Cartridges slotted in easily and off we go.
First thing I did was a print check. Print on paper and blank cd/dvd are of reasonable quality. Not as rich in colour depth as the original brand, but the difference is minimal.
For normal, everyday use it is great. But, if you are looking for replacement inks solely for the purpose to print high quality photos, then this is not the product for you.