I own and use a variety of fountain and dip pens and various inks. Having never used pilot ink until this pack I have to say it is very nice to use, in the parallel pens it comes out quit wet but is fast drying. I would pair it with some decent quality 180g or higher paper. The colours are delightful. Using the 6mm pen the cartridges don’t last all that long but can be easily refilled from a bottle with an eye dropper or syringe. If you find this product at discount, buy an extra box. The colours are fun and great to use.