I write a LOT of notes, and continue to use pen/ink as often as I can. I also have created my own template for very thin lines (think thinner than college ruled), and I also print college ruled sheets. So I often write with high end roller balls Mont Blanc, Leban, Visconti and Acme pens all work great on this paper. I have not used fountain pens on this to date.I have also used in inkjet printer and its been just fine! I like the ivory (its not over baring by any means) color, and it really enhances both dark blue inks and blacks, but I could see using a deep green (Mont Blanc has their Irish Green that would show fine on here), and find this paper a texture that I like the feel of with most all my pens. Smoother than I had expected.This is my second time purchasing this. A 3 hole puncher comes in handy when I want to put notes inside a binder. While it is a little pricey compared to some others, I have to say, you do get what you pay for here. Hope this helps others while hunting for a quality of paper to suite them as well!