Just received the AWESOME product! and tested all the inks right away. the whole package is great!! the only ink that disappointed me was dark brown as it was not dark. it was really light. other than that each and every color is vibrant and beautiful. astonishingly most of the colors are water resistant. that is really awesome!! the flow is good no feathering in the cheap pages and also no bleed through. after water test and water flow test for a few minutes most of the colors were totally visible and readable.