As an amateur photographer who prints occasional photos, I have been always on the hunt for inexpensive but good-quality inks for my Canon MP560. I have been a long time customer of (which is now owned by Kauai Business Solutions) who I believe offers best bang for the buck. I have tried other cheaper bulk inks from Amazon, which come close, but not quite the same. No leakage or recognition issues. Every print comes out clean. They also last long enough, although I do not have any side by side comparison with OEM cartridges. I recommend going with the value packs for extra saving. Overall, great value.